08 Shuttle''Challenger''Disaster Address
曲别针实验英语作文
曲别针实验英语作文The Paper Clip Experiment: Exploring the Limits of Human ConformityConformity, the act of aligning one's behavior, thoughts, and beliefs with those of a group, is a powerful force that shapes human society. It allows us to function cohesively, navigate social situations, and maintain a sense of belonging. However, the extent to which individuals are willing to conform, even in the face of clearly unethical or irrational demands, has long been a subject of fascination and concern for psychologists and sociologists.One of the most renowned studies on conformity is the paper clip experiment, conducted by social psychologist Solomon Asch in the 1950s. The study aimed to investigate the degree to which people would conform to the clearly incorrect judgments of a group, even when their own senses told them otherwise.The experiment was deceptively simple. Asch gathered a group of participants, led them to believe they were part of a perception study,and then presented them with a series of line comparison tasks. The participants were shown a card with a single line on it, followed by a second card with three lines of varying lengths. Their task was to identify which of the three lines on the second card matched the length of the line on the first card.The twist was that the majority of the participants in the group were actually Asch's confederates, instructed to give intentionally incorrect answers on certain trials. The true participant, unaware of this deception, was the last to respond in the group.The results of the experiment were both fascinating and disturbing. Despite the fact that the correct answer was clearly visible, a significant number of participants conformed to the incorrect judgments of the group. In some trials, up to 75% of participants went along with the group's erroneous responses, even when they knew the group was wrong.The implications of this study were profound. It revealed the remarkable power of social pressure and the human tendency to prioritize conformity over individual judgment, even in the face of clear evidence to the contrary. Asch's experiment highlighted the fragility of our critical thinking skills and the ease with which we can be swayed by the perceived consensus of a group.Moreover, the paper clip experiment shed light on the potential dangers of conformity in real-world situations. When individuals suppress their own beliefs and opinions in order to align with the majority, it can lead to the perpetuation of harmful social norms, the suppression of dissent, and the erosion of independent thought.One of the most striking examples of this phenomenon is the concept of "groupthink," a psychological phenomenon in which the desire for harmony within a group leads to poor decision-making and a failure to critically evaluate alternatives. Groupthink has been implicated in numerous historical disasters, from the Bay of Pigs invasion to the Challenger space shuttle disaster.The paper clip experiment also raises important questions about the role of individual agency and the responsibility we have to resist conformity when it conflicts with our moral and ethical principles. Asch's study demonstrated that even in the face of clear evidence, many people were willing to abandon their own judgment and go along with the group, a finding that has troubling implications for our ability to stand up to unjust or unethical social pressures.However, the experiment also revealed that a significant minority of participants were able to resist the pull of conformity and maintain their independent judgment. These individuals, often referred to as "non-conformists," serve as a reminder that the human capacity forindependent thought and moral courage is not easily extinguished.In the decades since Asch's groundbreaking work, the paper clip experiment has continued to captivate and challenge researchers, sparking ongoing discussions about the nature of human behavior, the limits of individual autonomy, and the complex interplay between the individual and the group.As we grapple with the implications of this study, it is important to recognize that the tendency towards conformity is not inherently negative. In many cases, conformity serves important social functions, allowing us to navigate complex environments, build trust, and maintain social cohesion. The challenge lies in striking a balance between the benefits of conformity and the need to preserve our individual agency and critical thinking skills.Ultimately, the paper clip experiment reminds us that we are all susceptible to the powerful forces of social influence, and that the preservation of our intellectual and moral independence requires constant vigilance and a willingness to challenge the status quo. By understanding the dynamics of conformity and the limits of our own judgment, we can strive to become more discerning, more courageous, and more resilient in the face of social pressure –qualities that are essential for the continued progress and well-being of our society.。
最伟大的100篇英文演讲排名 Top100 speeches
Top100 speeches 美国20世纪最伟大演讲100篇1Martin Luther King, Jr."I Have A Dream"2John Fitzgerald Kennedy Inaugural Address3Franklin Delano Roosevelt First Inaugural Address4Franklin Delano Roosevelt Pearl Harbor Address to the Nation5Barbara Charline Jordan1976 DNC Keynote Address6Richard Milhous Nixon"Checkers"7Malcolm X"The Ballot or the Bullet"8Ronald Wilson Reagan Shuttle ''Challenger'' Disaster Address9John Fitzgerald Kennedy Houston Ministerial Association Speech10Lyndon Baines Johnson"We Shall Overcome"11Mario Matthew Cuomo1984 DNC Keynote Address12Jesse Louis Jackson1984 DNC Address13Barbara Charline Jordan Statement on the Articles of Impeachment14(General) Douglas MacArthur Farewell Address to Congress15Martin Luther King, Jr."I've Been to the Mountaintop"16Theodore Roosevelt"The Man with the Muck-rake"17Robert Francis Kennedy Remarks on the Assassination of MLK18Dwight David Eisenhower Farewell Address19Thomas Woodrow Wilson War Message20(General) Douglas MacArthur"Duty, Honor, Country"21Richard Milhous Nixon"The Great Silent Majority"22John Fitzgerald Kennedy"Ich bin ein Berliner"23Clarence Seward Darrow"Mercy for Leopold and Loeb"24Russell H. Conwell"Acres of Diamonds"25Ronald Wilson Reagan"A Time for Choosing"26Huey Pierce Long"Every Man a King"27Anna Howard Shaw"The Fundamental Principle of a Republic"28Franklin Delano Roosevelt"The Arsenal of Democracy"29Ronald Wilson Reagan"The Evil Empire"30Ronald Wilson Reagan First Inaugural Address31Franklin Delano Roosevelt First Fireside Chat32Harry S. Truman"The Truman Doctrine"33William Cuthbert Faulkner Nobel Prize Acceptance Speech34Eugene Victor Debs1918 Statement to the Court35Hillary Diane Rodham Clinton"Women's Rights are Human Rights"mp336Dwight David Eisenhower"Atoms for Peace"37John Fitzgerald Kennedy American University Commencement Address mp3 38Dorothy Ann Willis Richards1988 DNC Keynote Address39Richard Milhous Nixon Resignation Speech mp3 40Thomas Woodrow Wilson"The Fourteen Points"41Margaret Chase Smith"Declaration of Conscience"42Franklin Delano Roosevelt"The Four Freedoms"mp3 43Martin Luther King, Jr."A Time to Break Silence"Off-Site.mp3 44William Jennings Bryan"Against Imperialism"45Barbara Pierce Bush1990 Wellesley College Commencement Address mp3 46John Fitzgerald Kennedy Civil Rights Address mp3 47John Fitzgerald Kennedy Cuban Missile Crisis Address mp3 48Spiro Theodore Agnew"Television News Coverage"mp3 49Jesse Louis Jackson1988 DNC Address50Mary Fisher"A Whisper of AIDS"mp351Lyndon Baines Johnson"The Great Society"52George Catlett Marshall"The Marshall Plan"mp3 53Edward Moore Kennedy"Truth and Tolerance in America"mp3 54Adlai Ewing Stevenson Presidential Nomination Acceptance Address mp3 55Anna Eleanor Roosevelt"The Struggle for Human Rights"56Geraldine Anne Ferraro Vice-Presidential Nomination Acceptance Speech mp3 57Robert Marion La Follette"Free Speech in Wartime"58Ronald Wilson Reagan40th Anniversary of D-Day Address59Mario Matthew Cuomo"Religious Belief and Public Morality"60Edward Moore Kennedy"Chappaquiddick"mp3 61John Llewellyn Lewis"The Rights of Labor"62Barry Morris Goldwater Presidential Nomination Acceptance Address mp3 63Stokely Carmichael"Black Power"Off-Site mp3 64Hubert Horatio Humphrey1948 DNC Address65Emma Goldman Address to the Jury66Carrie Chapman Catt"The Crisis"67Newton Norman Minow"Television and the Public Interest"68Edward Moore Kennedy Eulogy for Robert Francis Kennedy69Anita Faye Hill Statement to the Senate Judiciary Committee70Thomas Woodrow Wilson League of Nations Final Address71Henry Louis ("Lou") Gehrig Farewell to Baseball Address72Richard Milhous Nixon Cambodian Incursion Address mp3 73Carrie Chapman Catt Address to the U.S. Congress74Edward Moore Kennedy1980 DNC Address75Lyndon Baines Johnson On Vietnam and Not Seeking Re-Election mp376Franklin Delano Roosevelt Commonwealth Club Address77Thomas Woodrow Wilson First Inaugural Address78Mario Savio"Sproul Hall Sit-in Speech/An End to History"mp3 79Elizabeth Glaser1992 DNC Address80Eugene Victor Debs"The Issue"81Margaret Higgins Sanger"Children's Era"82Ursula Kroeber Le Guin"A Left-Handed Commencement Address"83Crystal Eastman"Now We Can Begin"84Huey Pierce Long"Share Our Wealth"85Gerald Rudolph Ford Address on Taking the Oath of Office mp3 86Cesar Estrada Chavez Speech on Ending His 25 Day Fast87Elizabeth Gurley Flynn Statement at the Smith Act Trial88Jimmy Earl Carter"A Crisis of Confidence"mp3 89Malcolm X"Message to the Grassroots"90William Jefferson Clinton Oklahoma Bombing Memorial Address91Shirley Anita St. Hill Chisholm"For the Equal Rights Amendment"92Ronald Wilson Reagan Brandenburg Gate Address93Eliezer ("Elie") Wiesel"The Perils of Indifference"mp3 94Gerald Rudolph Ford National Address Pardoning Richard M. Nixon mp3-Excerpt 95Thomas Woodrow Wilson"For the League of Nations"96Lyndon Baines Johnson"Let Us Continue"mp3 97Joseph N. Welch"Have You No Sense of Decency"mp3 98Anna Eleanor Roosevelt Adopting the Declaration of Human Rights99Robert Francis Kennedy"Day of Affirmation"100John Forbes Kerry"Vietnam Veterans Against the War"。
里根就挑站者号航天飞机失事悲剧英语演讲稿:警示我们前进道路上的危险
里根就挑站者号航天飞机失事悲剧英语演讲稿:警示我们前进道路上的危险Ladies and Gentlemen,Today, we are gathered here to remember the tragedy that occurred thirty-five years ago, when the Challenger Space Shuttle disintegrated just 73 seconds after its launch. On board the shuttle were seven crew members, including Christa McAuliffe, who was supposed to be the first teacher in space. The tragedy shattered our dreams and reminded us of the dangers of space exploration. But more importantly, it reminded us of the dangers that we face every day as wepursue our dreams.When Ronald Reagan addressed the nation after the tragedy, he spoke of the bravery and courage of the crew members who had died. He also spoke of their dedication to their work and their willingness to take risks in pursuit of their goals.But most importantly, he spoke of the dangers that we allface when we pursue our dreams.Reagan said, "We will never forget them, nor the lasttime we saw them, this morning, as they prepared for theirjourney and waved goodbye and 'slipped the surly bonds ofEarth' to 'touch the face of God.'"But what is the meaning of these words? What was Reagan trying to tell us? He was reminding us that when we pursueour dreams, we face dangers that we cannot predict or control. We must be brave and courageous, like the crew of the Challenger, but we must also be aware of the risks we face.In the case of the Challenger disaster, the danger wasnot something that could be predicted or controlled. The shuttle was supposed to be a symbol of the progress we had made in space exploration and our determination to explorethe universe. But it became a symbol of the dangers that we face every day.The tragedy of the Challenger should serve as a reminder that there are always dangers on the road to progress. Wemust be aware of these dangers and take steps to mitigate them. We must be willing to take risks, but we must also be prepared for the consequences. We must be brave, but we must also be cautious.So, as we remember the crew of the Challenger, let us also remember the lessons that we learned from their tragedy. Let us be brave and courageous, but let us also be aware of the dangers we face. Let us strive for progress and pursue our dreams, but let us also be prepared for the risks that we may encounter along the way.In conclusion, the Challenger tragedy serves as a reminder of the dangerous journey we all face in pursuit of our dreams. Let us remember the bravery and courage of the crew members who died, and let us honor their memory by being brave ourselves. Let us continue to strive for progress and pursue our dreams, but let us do so with caution and awareness, so that we may avoid the tragedies of the past and build a better future for ourselves and for generations to come.Thank you.。
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Infoprint 250 導入と計画の手引き 第 7 章ホスト
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美国20世纪100个经典英文演讲MP3(精选多篇)
美国20世纪100个经典英文演讲MP3(精选多篇)第一篇:美国20世纪100个经典英文演讲MP3rankspeakertitle/textaudio1martin luther king, jr. “i have a dream”MP3 stream2john fitzgerald kennedyinaugural addressMP3 stream3franklin delano rooseveltfirst inaugural addressMP3 stream4franklin delano rooseveltpearl harbor address to the nationMP3 stream5barbara charline jordan1976 dnc keynote addressMP3 stream6richard milhous nixon”checkers”MP3 stream7malcolm x”the ballot or the bullet”MP3.1 MP3.28ronald wilson reaganshuttle ‘‘challenger’’ disaster addressMP3 stream9john fitzgerald kennedyhouston ministerial association speechMP3 stream10lyndon baines johnson”we shall overcome”MP3 stream11mario mathew cuomo1984 dnc keynote addressMP3 stream12jesse louis jackson1984 dnc addressMP3.1 MP3.2 MP3.313barbara charline jordanstatement on the articles of impeachmentMP3 stream14(general) douglas macarthurfarewell address to congressMP3 stream15martin luther king, jr.“i’ve been to the mountaintop”MP3 stream16theodore roosevelt“the man with the muck-rake”17robert francis kennedyremarks on the assassination of mlkingMP3 stream18dwight david eisenhowerfarewell addressMP3 stream19woodrow thomas wilsonwar message20(general) douglas macarthur“duty, honor, country”MP3 stream21richard milhous nixon“the great silent majority”MP3 stream22john fitzgerald kennedy“ich bin ein berliner”MP3 stream23clarence seward darrow“mercy for leopold and loeb”24russell h. conwell“acres of diamonds”MP3 stream25ronald wilson reagan“a time for choosing”MP3 streamw26huey pierce long”every man a king”27anna howard shaw”the fundamental principle of a republic”28franklin delano roosevelt“the arsenal of democracy”MP3 stream29ronald wilson reagan“the evil empire”MP3 stream30ronald wilson reaganfirst inaugural addressMP3 stream31franklin delano rooseveltfirst fireside chatMP3 stream32harry s. truman”the truman doctrine”MP3 stream33william cuthbert faulknernobel prize acceptance speechMP3 stream34eugene victor debs1918 statement to the court35hillary rodham clinton“women’s rights are human rights”36dwight david eisenhower“atoms for peace”MP3 stream37john fitzgerald kennedyamerican university commencement addressMP338dorothy ann willis richards1988 dnc keynote addressMP339richard milhous nixonresignation speechMP340woodrow thomas wilson“the fourteen points”41margaret chase smith“declaration of conscience”42franklin delano roosevelt“the four freedoms”MP343martin luther king, jr.“a time to break silence”MP344mary church terrell“what it means to be colored in the...u.s.”45william jennings bryan“against imperialism”real audio stream46margaret higgins sanger“the morality of birth control”47barbara pierce bush1990 wellesley college commencement addressMP348john fitzgerald kennedycivil rights addressMP349john fitzgerald kennedycuban missile crisis addressMP350spiro theodore agnew“television news coverage”MP3w51jesse louis jackson1988 dnc addressMP3.1 MP3.252mary fisher“a whisper of aids”MP353lyndon baines johnson”the great society”MP3 stream54george catlett marshall “the marshall plan”MP355edward moore kennedy“truth and tolerance in america”MP356adlai ewing stevensonpresidential nomination acceptance address57anna eleanor roosevelt“the struggle for human rights”58geraldine anne ferrarovice-presidential nomination acceptance speechMP359robert marion la follette“free speech in wartime”60ronald wilson reagan40th anniversary of d-day addressMP361mario mathew cuomo“religious belief and public morality”62edward moore kennedy “chappaquiddick”MP363john llewellyn lewis“the rights of labor”64barry morris goldwaterpresidential nomination acceptance addressMP365stokely carmichael“black power”66hubert horatio humphrey1948 dnc address67emma goldmanaddress to the jury68carrie chapman catt“the crisis”69newton norman minow“television and the public interest”real audio stream70edward moore kennedyeulogy for robert francis kennedyMP3 stream71anita faye hillstatement to the senate judiciary committeeMP372woodrow thomas wilsonleague of nations final address73henry louis (“lou”) gehrigfarewell to baseball addressMP374richard milhous nixoncambodian incursion addressMP375carriechapman cattaddress to the u.s. congresssw76edward moore kennedy1980 dnc addressMP377lyndon baines johnsonon vietnam and not seeking re-electionMP378franklin delano rooseveltcommonwealth club address79woodrow thomas wilsonfirst inaugural address80mario savio“an end to history”81elizabeth glaser1992 dnc addressMP382eugene victor debs“the issue”83margaret higgins sanger”the children’s era”84ursula le guin”a left-handed commencement address”85crystal eastman“now we can begin”86huey pierce long“share our wealth”87gerald rudolph fordaddress on taking the oath of officeMP388cesar estrada chavezspeech on ending his 25 day fast89elizabeth gurley flynnstatement at the smith act trial90jimmy earl carter“a crisis of confidence”MP391malcolm x“message to the grassroots”MP392william jefferson clintonoklahoma bombing memorial addressMP393shirley anita st. hill chisholm”for the equal rights amendment”94ronald wilson reaganbrandenburg gate addressMP395eliezer (“elie”) wiesel”the perils of indifference”MP396gerald rudolph fordnational address pardoning richard m. nixonMP397woodrow thomas wilson“for the league of nations”98lyndon baines johnson“let us continue”MP399joseph n. welch“have you no sense of decency”MP3100anna eleanor rooseveltadopting the declaration of human rightsMP3第二篇:美国20世纪100个经典英文演讲MP3rankspeakertitle/textaudio1martin luther king, jr. “i have a dream”MP3 stream2john fitzgerald kennedyinaugural addressMP3 stream3franklin delano rooseveltfirst inaugural addressMP3 stream4franklin delano rooseveltpearl harbor address to the nationMP3 stream5barbara charline jordan1976 dnc keynote addressMP3 stream6richard milhous nixon”checkers”MP3 stream7malcolm x”the ballot or the bullet”MP3.1 MP3.28ronald wilson reaganshuttle ‘‘challenger’’ disaster addressMP3 stream9john fitzgerald kennedyhouston ministerial association speechMP3 s tream10lyndon baines johnson”we shall overcome”MP3 stream11mario mathew cuomo1984 dnc keynote addressMP3 stream12jesse louis jackson1984 dnc addressMP3.1 MP3.2 MP3.313barbara charline jordanstatement on the articles of impeachmentMP3 stream14(general) douglas macarthurfarewell address to congressMP3 stream15martin luther king, jr.“i’ve been to the mountaintop”MP3 stream16theodore roosevelt“the man with the muck-rake”17robert francis kennedyremarks on the assassination of mlkingMP3 stream18dwight david eisenhowerfarewell addressMP3 stream19woodrow thomas wilsonwar message20(general) douglas macarthur“duty, honor, country”MP3 stream21richard milhous nixon“the great silent majority”MP3 stream22john fitzgerald kennedy“ich bin ein berliner”MP3 stream23clarence seward darrow“mercy for leopold and loeb”24russell h. conwell“acres of diamonds”MP3 stream25ronald wilson reagan“a time for choosing”MP3 streamw26huey pierce long”every man a king”27anna howard sha w”the fundamental principle of a republic”28franklin delano roosevelt“the arsenal of democracy”MP3 stream29ronald wilson reagan“the evil empire”MP3 stream30ronald wilson reaganfirst inaugural addressMP3 stream31franklin delano rooseveltfirst fireside chatMP3 stream32harry s. truman”the truman doctrine”MP3 stream33william cuthbert faulknernobel prize acceptance speechMP3 stream34eugene victor debs1918 statement to the court35hillary rodham clinton“women’s rights are human rights”36dwight david eisenhower“atoms for peace”MP3 stream37john fitzgerald kennedyamerican university commencement addressMP338dorothy ann willis richards1988 dnc keynote addressMP339richard milhous nixonresignation speechMP340woodrow thomas wilson“the fourteen points”41margaret chase smith“declaration of conscience”42franklin delano roosevelt“the four freedoms”MP343martin luther king, jr.“a time to break silence”MP344mary church terrell“what it means to be colored in the...u.s.”45william jennings bryan“against imperialism”real audio stream46margaret higgins sanger“the morality of birth control”47barbara pierce bush1990 wellesley college commencement addressMP348john fitzgerald kennedycivil rights addressMP349john fitzgerald kennedycuban missile crisis addressMP350spiro theodore agnew“television news coverage”MP3w51jesse louis jackson1988 dnc addressMP3.1 MP3.252mary fisher“a whisper of aids”MP353lyndon baines johnson”the great society”MP3 stream54george catlett marshall“the marshall plan”MP355edward moore kennedy“truth and tolerance in america”MP356adlai ewing stevensonpresidential nomination acceptance address57anna eleanor roosevelt“the struggle for human rights”58geraldine anne ferrarovice-presidential nomination acceptance speechMP359robert marion la follette“free speech in wartime”60ronald wilson reagan40th anniversary of d-day addressMP361mario mathew cuomo“religious belief and public morality”62edward moore kennedy “chappaquiddick”MP363john llewellyn lewis“the rights of labor”64barry morris goldwaterpresidential nomination acceptance addressMP365stokely carmichael“black power”66hubert horatio humphrey1948 dnc address67emma goldmanaddress to the jury68carrie chapman catt“the crisis”69newton norman minow“television and the public interest”real audio stream70edward moore kennedyeulogy for robert francis kennedyMP3 stream71anita faye hillstatement to the senate judiciary committee MP372woodrow thomas wilsonleague of nations final address73henry louis (“lou”) gehrigfarewell to baseball addressMP374richard milhous nixoncambodian incursion addressMP375carriechapman cattaddress to the u.s. congresssw76edward moore kennedy1980 dnc addressMP377lyndon baines johnsonon vietnam and not seeking re-electionMP378franklin delano rooseveltcommonwealth club address79woodrow thomas wilsonfirst inaugural address80mario savio“an end to history”81elizabeth glaser1992 dnc addressMP382eugene victor debs“the issue”83margaret higgins sanger”the children’s era”84ursula le guin”a left-handed commencement address”85crystal eastman“now we can begin”86huey pierce long“share our wealth”87geral d rudolph fordaddress on taking the oath of officeMP388cesar estrada chavezspeech on ending his 25 day fast89elizabeth gurley flynnstatement at the smith act trial90jimmy earl carter“a crisis of confidence”MP391malcolm x“message to the grassroots”MP392william jefferson clintonoklahoma bombing memorial addressMP393shirley anita st. hill chisholm”for the equal rights amendment”94ronald wilson reaganbrandenburg gate addressMP395eliezer (“elie”) wiesel”the perils of indifference”MP396gerald rudolph fordnational address pardoning richard m. nixonMP397woodrow thomas wilson“for the league of nations”98lyndon baines johnson“let us continue”MP399joseph n. welch“have you no sense of decency”MP3100anna eleanor rooseveltadopting the declaration of human rightsMP3第三篇:美国20世纪经典英语演讲100篇(MP3+文本)???? ·美国经典英文演讲100篇:farewell address to congress·美国经典英文演讲100篇:1984 dnc address·美国经典英文演讲100篇:we shall overcome·美国经典英文演讲100篇:shuttle’’challenger’’disaster address?? ·美国经典英文演讲100篇:checkers·美国经典英文演讲100篇:pearl harbor address to the nation??? ·美国经典英文演讲100篇:i have a dream·美国经典英文演讲100篇:civil rights address·美国经典英文演讲100篇:a time to break silence-beyondvietnam????? ·美国经典英文演讲100篇:1988 dnc keynote address·美国经典英文演讲100篇:atoms for peace·美国经典英文演讲100篇:the truman doctrine·美国经典英文演讲100篇:first inaugural address·美国经典英文演讲100篇:the great arsenal of democracy??? ·美国经典英文演讲100篇:acres of diamonds·美国经典英文演讲100篇:the great silent majority·美国经典英文演讲100篇:farewell address。
2008r2系统初始化流程
2008r2系统初始化流程英文回答:The Windows Server 2008 R2 initialization process is a multi-stage procedure that involves several key steps:1. Power-on self-test (POST): The POST is a series of tests that the system hardware performs immediately after being powered on. During the POST, the hardware is checked for functionality, and the system BIOS is loaded.2. Bootloader :The bootloader is a small program thatis responsible for loading the operating system into memory. The bootloader is typically located on the system's hard drive or on a USB drive.3. Kernel :The kernel is the core of the operating system. It provides the basic functionality that allows the operating system to run. The kernel is loaded into memoryby the bootloader.4. Hardware abstraction layer (HAL): The HAL is a layer of software that abstracts the hardware from the rest of the operating system. The HAL allows the operating system to run on a variety of different hardware platforms.5. Device drivers: Device drivers are software programs that allow the operating system to communicate with hardware devices. Device drivers are loaded into memory by the operating system.6. User interface: The user interface is the part of the operating system that allows users to interact with the system. The user interface can be graphical or text-based.Once the initialization process is complete, the operating system is ready to be used.中文回答:Windows Server 2008 R2 初始化流程是一个多阶段的过程,涉及几个关键步骤:1. 加电自检 (POST),POST 是一系列在系统加电后立即执行的硬件测试。
挑战者号的失事真相以及你不知道的费曼冰水实验 雷锋网
挑战者号的失事真相以及你不知道的费曼冰水实验雷锋网雷锋网(搜索“雷锋网”公众号关注)按:本文作者巴特,来自知社学术圈。
【导读】5月11日是理查德·费曼的生日,在缅怀这位物理学家的同时,一定要讲讲他与挑战者号航天飞机的故事,因为今年正是挑战者号失事30周年。
费曼作为失事调查团成员,对揭露事件真相起到了关键的作用。
让我们回到当时,感受这位物理学家的智慧与执着。
1986年1月28日,美国挑战者号航天飞机升空后,因其右侧固体火箭助推器的O型环密封圈失效,毗邻的外部燃料舱在泄漏出的火焰的高温烧灼下结构失效,使高速飞行中的航天飞机在空气阻力的作用下于发射后的第73秒解体,机上7名宇航员全部罹难。
挑战者号的残骸散落在大海上。
遇难宇航员灾难的发生令全世界震惊,美国总统罗纳德·里根立即委派前国务卿罗杰斯对事故进行调查。
调查团成员包括宇航员阿姆斯特朗、赖德,以及著名理论物理学家理查德·费曼。
当时费曼已经68岁高龄,距离自己的人生终点只有两年时间。
在发射前夕,肯尼迪航天中心当地环境极为寒冷,气温降到了零下,这几乎是允许航天发射的最低温度。
负责维护航天飞机火箭助推器的工程师也曾表示担心,但种种原因,火箭承包商和NASA高层最终没有将其作为推迟发射的理由。
于是,悲剧发生了。
经过调查,费曼将问题锁定在火箭助推器的O型环密封圈。
该O型环为橡胶材料,具有一定膨胀性,以便在挑战者号发射时为火箭脆弱的接合处提供密封功能,防止高温气体接触燃料箱。
调查会现场在调查公开会议现场,费曼用一个非常简单的实验作了说明:他将连接件模型上的O型环稍作挤压后置入冰水一段时间后取出,我发现,从冰水里拿出的O型环材料没有恢复原形。
换句话说,有好几秒钟时间,它受低温影响,失去了膨胀性,尤其在气温为(华氏) 32度的时候。
我认为这对我们正在讨论的问题有直接的影响。
费曼演示冰水实验O型环材料样品的临时连接件模型然而,这样明确直接的声音却并未得到调查团队的支持。
20世纪美国100大演讲
American Rhetoric Top 100 Speeches of the 20th Century by DecadeDecade SpeakerTitle/Text/MultiMedia AudioDuration1900-19101900-1925 Russell H. Conwell"Acres of Diamonds"mp3-ExcerptPDF FLASH08 Aug 1900 William Jennings Bryan"Against Imperialism"mp3-ExcerptPDF FLASH14 Apr 1906Theodore Roosevelt"The Man with the Muck-rake"PDF FLASH10 Oct 1906 Mary Church Terrell "What it Means to be Colored in the...U.S." PDF FLASH23 May 1908 Eugene Victor Debs"The Issue"1911-192004 Mar 1913 Thomas Woodrow WilsonFirst Inaugural AddressPDF FLASH21 Jun 1915Anna Howard Shaw"The Fundamental Principle of a Republic" PDF FLASH07 Sep 1916 Carrie Chapman Catt "The Crisis"PDF FLASH02 Apr 1917 Thomas Woodrow Wilson War MessagePDF FLASH09 Jul 1917 Emma GoldmanAddress to the JuryPDF FLASH06 Oct 1917 Robert Marion La Follette "Free Speech in Wartime"PDF FLASH?? Nov 1917 Carrie Chapman Catt Address to the U.S. Congress PDF FLASH08 Jan 1918 Thomas Woodrow Wilson "The Fourteen Points"PDF FLASH14 Sep 1918 Eugene Victor Debs 1918 Statement to the Court PDF FLASH06 Sep 1919 Thomas Woodrow Wilson "For the League of Nations"PDF FLASH25 Sep 1919 Thomas Woodrow WilsonLeague of Nations Final AddressPDF FLASH1921-1930Sep-Oct 1920 Crystal Eastman "Now We Can Begin"1921-1922Margaret Higgins Sanger"The Morality of Birth Control" PDF FLASHAug 1924 Clarence Seward Darrow "Mercy for Leopold and Loeb"PDF FLASHMar 1925 Margaret Higgins Sanger"The Children's Era"1931-194023 Sep 1932 Franklin Delano RooseveltCommonwealth Club AddressPDF FLASH04 Mar 1933 Franklin Delano Roosevelt First Inaugural Address mp3PDF FLASH12 Mar 1933 Franklin Delano Roosevelt First Fireside Chat mp3PDF FLASH23 Feb 1934 Huey Pierce Long "Every Man a King"PDF FLASH07 Mar 1935 Huey Pierce Long "Share Our Wealth"PDF FLASH03 Sep 1937 John Llewellyn Lewis "The Rights of Labor"PDF FLASH04 Jul 1939 Henry Louis ("Lou") Gehrig Farewell to Baseball AddressPDF FLASH29 Dec 1940 Franklin Delano Roosevelt"The Arsenal of Democracy"mp3PDF FLASH1941-195008 Dec 1941Franklin Delano RooseveltPearl Harbor Address to the Nation mp3PDF FLASH 06 Jan 1941 Franklin Delano Roosevelt"The Four Freedoms"mp3PDF FLASH12 Mar 1947Harry S. Truman"The Truman Doctrine" mp3PDF FLASH05 Jun 1947George Catlett Marshall"The Marshall Plan"mp3PDF FLASH14 Jul 1948Hubert Horatio Humphrey1948 DNC Address Off-site Audio PDF FLASH09 Dec 1948Anna Eleanor Roosevelt Adopting the Declaration of Human Rights mp3PDF FLASH28 Dec 1948Anna Eleanor Roosevelt"The Struggle for Human Rights"PDF FLASH01 Jun 1950Margaret Chase Smith"Declaration of Conscience"PDF FLASH10 Dec 1950William Cuthbert Faulkner Nobel Prize Acceptance Speech Real Audio PDF FLASH1951-196019 Apr 1951(General) Douglas MacArthur Farewell Address to Congress mp3PDF FLASH26 Jul 1952Adlai Ewing Stevenson Presidential Nomination Acceptance Address mp3PDF FLASH23 Sep 1952Richard Milhous Nixon"Checkers"mp3PDF FLASH02 Feb 1953Elizabeth Gurley Flynn Statement at the Smith Act Trial PDF FLASH08 Dec 1953Dwight David Eisenhower"Atoms for Peace"mp3PDF FLASH09 Jun 1954Joseph N. Welch"Have You No Sense of Decency"mp3PDF FLASH12 Sep 1960John Fitzgerald Kennedy Houston Ministerial Association Speech mp3PDF FLASH1961-197017 Jan 1961Dwight David Eisenhower Farewell Address mp3PDF FLASH20 Jan 1961John Fitzgerald Kennedy Inaugural Address mp3PDF FLASH09 May 1961Newton Norman Minow"Television and the Public Interest" mp3PDF FLASH12 May 1962(General) Douglas MacArthur"Duty, Honor, Country" mp3PDF FLASH10 Jun 1963John Fitzgerald Kennedy American University Commencement Address mp3PDF FLASH11 Jun 1963John Fitzgerald Kennedy Civil Rights Address mp3PDF FLASH22 Oct 1962John Fitzgerald Kennedy Cuban Missile Crisis Address mp3PDF FLASH26 Jun 1963John Fitzgerald Kennedy"Ich bin ein Berliner"mp3PDF FLASH28 Aug 1963Martin Luther King, Jr. "I Have A Dream"mp3PDF FLASH03 Apr 1964Malcolm X"The Ballot or the Bullet"mp327 Oct 1964Ronald Wilson Reagan"A Time for Choosing"mp3PDF FLASH22 May 1964Lyndon Baines Johnson"The Great Society"mp3PDF FLASH16 Jul 1964Barry Morris Goldwater Presidential Nomination Acceptance Address mp3PDF FLASH10 Nov 1963Malcolm X"Message to the Grassroots"27 Nov 1963Lyndon Baines Johnson"Let Us Continue"mp3PDF FLASH02 Dec 1964Mario Savio"Sproul Hall Sit-in Speech/An End to History"mp3PDF FLASH15 Mar 1965Lyndon Baines Johnson"We Shall Overcome"mp3PDF FLASH?? Oct 1966Stokely Carmichael"Black Power"mp3PDF FLASH10 Mar 1968Cesar Estrada Chavez Speech on Ending His 25 Day Fast31 Mar 1968Lyndon Baines Johnson On Vietnam and Not Seeking Re-Election mp3PDF FLASH04 Apr 1967Martin Luther King, Jr."A Time to Break Silence"mp3PDF FLASH03 Apr 1968Martin Luther King, Jr. "I've Been to the Mountaintop"Real Audio PDF FLASH04 Apr 1968Robert Francis Kennedy Remarks on the Assassination of MLK mp3PDF FLASH08 Jun 1968Edward Moore Kennedy Eulogy for Robert Francis Kennedy mp3PDF FLASH25 Jul 1969Edward Moore Kennedy"Chappaquiddick" mp3PDF FLASH 03 Nov 1969Richard Milhous Nixon"The Great Silent Majority" mp3PDF FLASH13 Nov 1969Spiro Theodore Agnew"Television News Coverage"mp3-ExcerptPDF FLASH30 Apr 1970 Richard Milhous NixonCambodian Incursion Address mp3PDF FLASH10 Aug 1970 Shirley Anita St. Hill Chisholm"For the Equal Rights Amendment"PDF FLASH1971-198025 Jul 1974 Barbara Charline JordanStatement on the Articles of Impeachment mp3PDF FLASH08 Aug 1974Richard Milhous NixonResignation Speechmp3PDF FLASH09 Aug 1974 Gerald Rudolph Ford Address on Taking the Oath of Officemp3PDF FLASH08 Sep 1974 Gerald Rudolph Ford National Address Pardoning Richard M. Nixon mp3-ExcerptPDF FLASH12 Jul 1976 Barbara Charline Jordan 1976 DNC Keynote Address mp3PDF FLASH15 Jul 1979 Jimmy Earl Carter "A Crisis of Confidence"mp3PDF FLASH12 Jul 1980 Edward Moore Kennedy1980 DNC Addressmp3PDF FLASH1981-199020 Jan 1981 Ronald Wilson ReaganFirst Inaugural Address mp3PDF FLASH08 Mar 1983 Ronald Wilson Reagan "The Evil Empire"mp3PDF FLASH22 May 1983 Ursula Kroeber Le Guin "A Left-Handed Commencement Address"PDF FLASH03 Oct 1983 Edward Moore Kennedy "Truth and Tolerance in America"mp3PDF FLASH06 Jun 1984 Ronald Wilson Reagan 40th Anniversary of D-Day Address mp3PDF FLASH17 Jul 1984 Jesse Louis Jackson 1984 DNC AddressPDF FLASH17 Jul 1984 Mario Matthew Cuomo 1984 DNC Keynote Address mp3PDF FLASH19 Jul 1984 Geraldine Anne Ferraro Vice-Presidential Nomination Acceptance Speech mp3PDF FLASH13 Sep 1984 Mario Matthew Cuomo "Religious Belief and Public Morality"28 Jan 1986 Ronald Wilson Reagan Shuttle ''Challenger'' Disaster Address mp3PDF FLASH12 Jun 1987 Ronald Wilson ReaganBrandenburg Gate Addressmp3PDF FLASH18 Jul 1988 Dorothy Ann Willis Richards1988 DNC Keynote Address mp3PDF FLASH20 Jul 1988Jesse Louis Jackson1988 DNC AddressPDF FLASH01 Jun 1990 Barbara Pierce Bush1990 Wellesley College Commencement Address mp3PDF FLASH1991-200011 Oct 1991 Anita Faye HillStatement to the Senate Judiciary Committee mp3PDF FLASH14 Jul 1992 Elizabeth Glaser1992 DNC Addressmp3PDF FLASH19 Aug 1992 Mary Fisher"A Whisper of AIDS"mp3PDF FLASH23 Apr 1995 William Jefferson Clinton Oklahoma Bombing Memorial Address mp3PDF FLASH05 Sep 1995 Hillary Diane Rodham ClintonWomen's Rights Are Human Rights mp3PDF FLASH 12 Apr 1999Eliezer ("Elie") Wiesel"The Perils of Indifference"mp3PDF FLASH/top100speechesbydecade.html /caoxinqun。
里根就挑站者号航天飞机失事悲剧英语演讲稿:了解历史,缅怀先烈
里根就挑站者号航天飞机失事悲剧英语演讲稿:了解历史,缅怀先烈Ladies and gentlemen,Today, I would like to talk to you about one of the most tragic events that happened in the history of space exploration – the Challenger Space Shuttle disaster. The loss of the crew and the spacecraft on January 28, 1986, was a huge blow to the world of science and engineering. However, while we mourn this event, we must also remember the dedication and sacrifice of the brave men and women who lost their lives that day.As we delve into the intricacie s of this event, it’s important to note that the mission was a high-stakes one, with the eyes of the world watching as the Challenger spacecraft prepared to take off. The crew, including thefirst teacher to travel to space, were a highly trained and talented group of astronauts who were all excited to be a part of this historic event. With the excitement building with the countdown clock ticking down, no one could have predicted the tragedy that lay ahead.The launch was plagued with issues from the very beginning. There were concerns about the weather conditions, and there were also concerns about the stability of the spacecraft. In fact, there were instances where engineers had raised concerns about the reliability of the spacecraft, but their concerns had gone unheeded. Despite these concerns, the launch went ahead.Just 73 seconds after the launch, the Challenger space shuttle exploded, killing all seven crew members on board. The shock and horror of that moment would stay with the world forever – a reminder of the high stakes involved in space exploration.This disaster shook the world to its core and was a stark reminder of the dangers involved in space exploration. But,it also highlighted the importance of learning from our mistakes, ensuring that we don’t repeat them and that safety remains a top priority. This is particularly important as we continue our exploration of space and work to uncover the mysteries of the universe.The crew aboard the Challenger spacecraft were explorers, trailblazers, and heroes. They were the kind of people whoknew that the risks were high, but the reward of advancing science and exploration was worth it. They were selfless, brave, and dedicated to the pursuit of knowledge.Today, we remember their legacy and honor their sacrifice. We must also learn from this tragedy and continue to push forward in the field of space exploration, while always prioritizing safety and learning from our mistakes.In conclusion, the Challenger Space Shuttle disaster remains a significant event in the history of space exploration. However, it’s important to note that it’s not just about the disaster itself, but also about the braveryand dedication of the crew who lost their lives in thepursuit of scientific discovery. We must never forget their sacrifice and continue to push forward towards new horizons, while always remembering the lessons of history. Thank you.。
challenger disaster(挑战者号)
Ultimately, the flames proceeded to burn through the Space Shuttle Challenger‘s external fuel tank and through one of the supports that attached the booster to the side of the tank. The booster broke loose and collided with the tank, piercing the fuel tank’s side. Liquid hydrogen and liquid oxygen fuels from the tank and booster mixed and ignited,causing the challenger to tear apart.
The challenger space shuttle went to nine successful space flight missions before the disaster. A little over one minute after takeoff, the shuttle began breaking apart, and eventually the spacecraft reached complete structural failure and crashed. But what exactly caused the space shuttle to explode? (outer space universe, 2011)
Thank you!
NASA management acted as if keeping to the schedule was more important than the safetygineers did not stress the severity of problems created by the cold weather enough. Because the O-rings were never tested at temperatures as low as the conditions during the actual launch.
美国经典英文演讲100篇Shuttle
美国经典英文演讲100篇:ShuttleRonald Reagan: The Space Shuttle "Challenger" Tragedy Address"We'll continue our quest in space. There will be more shuttle flights……more volunteers, more civilians, more teachers in space."Ladies and Gentlemen, I'd planned to speak to you tonight to report on the state of the Union, but the events of earlier today have led me to change those plans. Today is a day for mourning and remembering. Nancy and I are pained to the core by the tragedy of the shuttle Challenger. We know we share this pain with all of the people of our country. This is truly a national loss.Nineteen years ago, almost to the day, we lost three astronauts in a terrible accident on the ground. But we've never lost an astronaut in flight. We've never had a tragedy like this. And perhaps we've forgotten the courage it took for the crew of the shuttle. But they, the Challenger Seven, were aware of the dangers, but overcame them and did their jobs brilliantly. We mourn seven heroes: Michael Smith,Dick Scobee, Judith Resnik, Ronald McNair, Ellison Onizuka, Gregory Jarvis, and Christa McAuliffe. We mourn their loss as a nation together.For the families of the seven, we cannot bear, as you do, the full impact of this tragedy. But we feel the loss, and we're thinking about you so very much. Your loved ones were daring and brave, and they had that special grace, that special spirit that says, "Give me a challenge, and I'll meet it with joy." They had a hunger to explore the universe and discover its truths. They wished to serve, and they did. They served all of us.We've grown used to wonders in this century. It's hard to dazzle us. But for twenty-five years the United States space program has been doing just that. We've grown used to the idea of space, and, perhaps we forget that we've only just begun. We're still pioneers. They, the members of the Challenger crew, were pioneers.And I want to say something to the schoolchildren of America who were watching the live coverage of the shuttle's take-off. I know it's hard to understand, but sometimes painful things like this happen. It's all part of the process of exploration and discovery. It's all part of taking a chance and expanding man's horizons. The future doesn't belong to the fainthearted; it belongs to the brave. The Challenger crew was pulling us into the future, and we'll continue to follow them.I've always had great faith in and respect for our space program. And what happened today does nothing to diminish it. We don't hide our space program. We don't keep secrets and cover things up. We do it all up front and in public. That's the way freedom is, and we wouldn't change it for a minute.We'll continue our quest in space. There will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. Nothing ends here; our hopes and our journeys continue.I want to add that I wish I could talk to every man and woman who works for NASA,or who worked on this mission and tell them: "Your dedication and professionalism have moved and impressed us for decades. And we know of your anguish. We share it."There's a coincidence today. On this day three hundred and ninety years ago,the great explorer Sir Francis Drake died aboard ship off the coast of Panama. In his lifetime the great frontiers were the oceans, and a historian later said, "He lived by the sea, died on it, and was buried in it." Well, today, we can say of the Challenger crew: Their dedication was, like Drake's, complete.The crew of the space shuttle Challenger honored us by the manner in which they lived their lives. We will never forget them, nor the last time we saw them, this morning, as they prepared for their journey and waved goodbye and "slipped the surly bonds of earth" to "touch the face of God."Thank you.1 2 3 4 5 6。
100个美国历史上的经典演讲
Rank Speaker Title/Text/MultiMedia 1Martin Luther King, Jr.I Have A Dream2John Fitzgerald Kennedy Inaugural Address3Franklin Delano Roosevelt First Inaugural Address4Franklin Delano Roosevelt Pearl Harbor Address to the Nation5Barbara Charline Jordan1976 DNC Keynote Address6Richard Milhous Nixon Checkers7Malcolm X The Ballot or the Bullet8Ronald Wilson Reagan Shuttle ''Challenger'' Disaster Address 9John Fitzgerald Kennedy Houston Ministerial Association Speech 10Lyndon Baines Johnson We Shall Overcome11Mario Matthew Cuomo1984 DNC Keynote Address12Jesse Louis Jackson1984 DNC Address13Barbara Charline Jordan Statement on the Articles of Impeachment点击演讲标题,即可查看对应文本14(General) Douglas MacArthur Farewell Address to Congress15Martin Luther King, Jr.I've Been to the Mountaintop16Theodore Roosevelt The Man with the Muck-rake17Robert Francis Kennedy Remarks on the Assassination of MLK 18Dwight David Eisenhower Farewell Address19Thomas Woodrow Wilson War Message20(General) Douglas MacArthur Duty, Honor, Country21Richard Milhous Nixon The Great Silent Majority22John Fitzgerald Kennedy Ich bin ein Berliner23Clarence Seward Darrow Mercy for Leopold and Loeb24Russell H. Conwell Acres of Diamonds25Ronald Wilson Reagan A Time for Choosing26Huey Pierce Long Every Man a King27Anna Howard Shaw The Fundamental Principle of a Republic点击演讲标题,即可查看对应文本28Franklin Delano Roosevelt The Arsenal of Democracy29Ronald Wilson Reagan The Evil Empire30Ronald Wilson Reagan First Inaugural Address31Franklin Delano Roosevelt First Fireside Chat32Harry S. Truman The Truman Doctrine33William Cuthbert Faulkner Nobel Prize Acceptance Speech34Eugene Victor Debs1918 Statement to the Court35Hillary Diane Rodham Clinton Women's Rights are Human Rights36Dwight David Eisenhower Atoms for Peace37John Fitzgerald Kennedy American University Commencement Address 38Dorothy Ann Willis Richards1988 DNC Keynote Address39Richard Milhous Nixon Resignation Speech40Thomas Woodrow Wilson The Fourteen Points41Margaret Chase Smith Declaration of Conscience点击演讲标题,即可查看对应文本42Franklin Delano Roosevelt The Four Freedoms43Martin Luther King, Jr. A Time to Break Silence44Mary Church Terrell What it Means to be Colored in the...U.S.45William Jennings Bryan Against Imperialism46Margaret Higgins Sanger The Morality of Birth Control47Barbara Pierce Bush1990 Wellesley College Commencement Address 48John Fitzgerald Kennedy Civil Rights Address49John Fitzgerald Kennedy Cuban Missile Crisis Address50Spiro Theodore Agnew Television News Coverage51Jesse Louis Jackson1988 DNC Address52Mary Fisher A Whisper of AIDS53Lyndon Baines Johnson The Great Society54George Catlett Marshall The Marshall Plan55Edward Moore Kennedy Truth and Tolerance in America点击演讲标题,即可查看对应文本56Adlai Ewing Stevenson Presidential Nomination Acceptance Address 57Anna Eleanor Roosevelt The Struggle for Human Rights58Geraldine Anne Ferraro Vice-Presidential Nomination Acceptance Speech 59Robert Marion La Follette Free Speech in Wartime60Ronald Wilson Reagan40th Anniversary of D-Day Address61Mario Matthew Cuomo Religious Belief and Public Morality62Edward Moore Kennedy Chappaquiddick63John Llewellyn Lewis The Rights of Labor64Barry Morris Goldwater Presidential Nomination Acceptance Address 65Stokely Carmichael Black Power66Hubert Horatio Humphrey1948 DNC Address67Emma Goldman Address to the Jury68Carrie Chapman Catt The Crisis69Newton Norman Minow Television and the Public Interest点击演讲标题,即可查看对应文本70Edward Moore Kennedy Eulogy for Robert Francis Kennedy71Anita Faye Hill Statement to the Senate Judiciary Committee 72Thomas Woodrow Wilson League of Nations Final Address73Henry Louis (Lou) Gehrig Farewell to Baseball Address74Richard Milhous Nixon Cambodian Incursion Address75Carrie Chapman Catt Address to the U.S. Congress76Edward Moore Kennedy1980 DNC Address77Lyndon Baines Johnson On Vietnam and Not Seeking Re-Election78Franklin Delano Roosevelt Commonwealth Club Address79Thomas Woodrow Wilson First Inaugural Address80Mario Savio Sproul Hall Sit-in Speech/An End to History 81Elizabeth Glaser1992 DNC Address82Eugene Victor Debs The Issue83Margaret Higgins Sanger Children's Era点击演讲标题,即可查看对应文本84Ursula Kroeber Le Guin A Left-Handed Commencement Address85Crystal Eastman Now We Can Begin86Huey Pierce Long Share Our Wealth87Gerald Rudolph Ford Address on Taking the Oath of Office88Cesar Estrada Chavez Speech on Ending His 25 Day Fast89Elizabeth Gurley Flynn Statement at the Smith Act Trial90Jimmy Earl Carter A Crisis of Confidence91Malcolm X Message to the Grassroots92William Jefferson Clinton Oklahoma Bombing Memorial Address93Shirley Anita St. Hill Chisholm For the Equal Rights Amendment94Ronald Wilson Reagan Brandenburg Gate Address95Eliezer (Elie) Wiesel The Perils of Indifference96Gerald Rudolph Ford National Address Pardoning Richard M. Nixon 97Thomas Woodrow Wilson For the League of Nations点击演讲标题,即可查看对应文本98Lyndon Baines Johnson Let Us Continue99Joseph N. Welch Have You No Sense of Decency100Anna Eleanor Roosevelt Adopting the Declaration of Human Rights点击演讲标题,即可查看对应文本。
美国经典英文演讲一百篇
美国20世纪经典英语演讲100篇(MP3+文本)∙·美国经典英文演讲100篇:Farewell Address to Congress ∙·美国经典英文演讲100篇:1984 DNC Address∙·美国经典英文演讲100篇:We Shall Overcome∙·美国经典英文演讲100篇:Sh uttle’’Challenger’’Disaster Address∙·美国经典英文演讲100篇:Checkers∙·美国经典英文演讲100篇:Pearl Harbor Address to the Nation ∙·美国经典英文演讲100篇:I Have a Dream∙·美国经典英文演讲100篇:Civil Rights Address∙·美国经典英文演讲100篇:A Time to Break Silence-Beyond Vietnam∙·美国经典英文演讲100篇:1988 DNC Keynote Address ∙·美国经典英文演讲100篇:Atoms for Peace∙·美国经典英文演讲100篇:The Truman Doctrine∙·美国经典英文演讲100篇:First Inaugural Address∙·美国经典英文演讲100篇:The Great Arsenal of Democracy ∙·美国经典英文演讲100篇:Acres of Diamonds∙·美国经典英文演讲100篇:The Great Silent Majority∙·美国经典英文演讲100篇:Farewell Address∙·美国经典英文演讲100篇:Oklahoma Bombing Memorial Address∙·美国经典英文演讲100篇:A Crisis of Confidence∙·美国经典英文演讲100篇:1992 DNC Address∙·美国经典英文演讲100篇:On Vietnam and Not Seeking Re-Election∙·美国经典英文演讲100篇:Cambodian Incursion Address ∙·美国经典英文演讲100篇:Eulogy for Robert Francis Kennedy ∙·美国经典英文演讲100篇:Black Power∙·美国经典英文演讲100篇:Chappaquiddick∙·美国经典英文演讲100篇:40th Anniversary of D-Day Address ∙·美国经典英文演讲100篇:Presidential Nomination Acceptance..∙·美国经典英文演讲100篇:The Marshall Plan∙·美国经典英文演讲100篇:A Whisper of AIDS∙·美国经典英文演讲100篇:1988 DNC Address(下)∙·美国经典英文演讲100篇:I’ve Been to the Mountaintop ∙·美国经典英文演讲100篇:Statement on the Articles of Impeachment∙·美国经典英文演讲100篇:1984 DNC Keynote Address ∙·美国经典英文演讲100篇:Houston Ministerial Association Speech∙·美国经典英文演讲100篇:The Ballot or the Bullet∙·美国经典英文演讲100篇:1976 DNC Keynote Address∙·美国经典英文演讲100篇:Inaugural Address∙·美国经典英文演讲100篇:Television News Coverage ∙·美国经典英文演讲100篇:Against Imperialism∙·美国经典英文演讲100篇:The Four Freedoms∙·美国经典英文演讲100篇:American University Commencement Address∙·美国经典英文演讲100篇:Nobel Prize Acceptance Speech ∙·美国经典英文演讲100篇:First Fireside Chat∙·美国经典英文演讲100篇:The Evil Empire∙·美国经典英文演讲100篇:A Time for Choosing∙·美国经典英文演讲100篇:Ich bin ein Berliner∙·美国经典英文演讲100篇:Duty, Honor, Country∙·美国经典英文演讲100篇:Remarks on the Assassination of MLKing∙·美国经典英文演讲100篇:Message to the Grassroots ∙·美国经典英文演讲100篇:Address on Taking the Oath of Office∙·美国经典英文演讲100篇:Sproul Hall Sit-in Speech...∙·美国经典英文演讲100篇:1980 DNC Address∙·美国经典英文演讲100篇:Statement to the Senate Judiciary...∙·美国经典英文演讲100篇:Television and the Public Interest∙·美国经典英文演讲100篇:Presidential Nomination ...∙·美国经典英文演讲100篇:Religious Belief and Public Morality ∙·美国经典英文演讲100篇:Vice-Presidential Nomination...∙·美国经典英文演讲100篇:Truth and Tolerance in America ∙·美国经典英文演讲100篇:The Great Society∙·美国经典英文演讲100篇:1988 DNC Address(上)∙·美国经典英文演讲100篇:Brandenburg Gate Address。
美国20世纪100个经典英文演讲(精选多篇)
美国20世纪100个经典英文演讲MP3(精选多篇) “i have a dream”MP3 stream2inaugural address MP3 stream3first inaugural addressMP3 stream4pearl harbor address to the nationMP3 stream51976 dnc keynote address“checkers”MP3 stream7malcolm x”the ballot or the bullet”shuttle ‘‘challenger’’ disaster addressMP3 stream9houston ministerial association speech MP3 stream10lyndon baines johnson”e”MP3 stream11mario matheo1984 dnc keynote address MP3 stream12jesse louis jackson1984 dnc addressstatement on the articles of impeachmentMP3 stream14fare15”i’ve been to the mountaintop”MP3 stream16”the man uck-rake”17remarks on the assassination of mlkingMP3 stream18d19essage20”duty, honor, country”MP3 stream21”the great silent majority”MP3 stream22”ich bin ein berliner”MP3 stream23”mercy for leopold and loeb”24”acres of diamonds”MP3 stream25”a time for choosing”MP3 streaman a king”27anna hoental principle of a republic”28”the arsenal of democracy”MP3 stream29”the evil empire”MP3 stream30first inaugural addressMP3 stream31first fireside chatMP3 stream32harry s. truman”the truman doctrine”MP3 stream33 cuthbert faulknernobel prize acceptance speechMP3 stream341918 statement to the court35”en’s rights are human rights”36”atoms for peace”MP3 stream37american university commencement address1988 dnc keynote addressresignation speech“the fourteen points”41”declaration of conscience”42”the four freedoms”MP343”a time to break silence”MP344”eans to be colored in the...u.s.”45”against imperialism”“the morality of birth control”471990 mencement addresscivil rights addresscuban missile crisis address“television ne54”the marshall plan”“truth and tolerance in america”MP356presidential nomination acceptance address57”the struggle for human rights”58vice-presidential nomination acceptance speechMP359”free speech in e”6040th anniversary of d-day address“religious belief and public morality”62”chappaquiddick”“the rights of labor”64presidential nomination acceptance addressMP365”black po70eulogy for robert francis kennedyMP3 stream71anita faye hillstatement to the senate judiciary committeeMP372as bodian incursion addressMP375address to the u.s. congresss and not seeking re-electionMP378commonargaret higgins sanger”the children’sera”84ursula le guin”a left-handed commencement address”85”noent at the smith act trial90”a crisis of confidence”MP391”message to the grassroots”MP392oklahoma bombing memorial addressM P393shirley anita st. hill chisholm”for the equal rights amendment”94ronald . nixon“for the league of nations”98”let us continue”MP399”have you no sense of decency”MP3100adopting the declaration of human rightsMP3第三篇:美国20世纪经典英语演讲100篇(MP3+文本)???? ·美国经典英文演讲100篇:faree·美国经典英文演讲100篇:shuttle’’challenger’’disaster addre。
四年级下册第二单元的英语作文时光穿梭机
四年级下册第二单元的英语作文时光穿梭机全文共3篇示例,供读者参考篇1A Time Travel Machine?! How Awesome Would That Be!Imagine being able to travel through time and space to any period in history or to the future. It would be the adventure of a lifetime! If I had a time travel machine, I would go on the most epic journey through the ages.First stop: The Jurassic Period around 200 million years ago. I've always dreamed of coming face-to-face with the most magnificent beasts that ever roamed the Earth – the dinosaurs! I'd love to see a massive Tyrannosaurus Rex up close, although I'd have to be extremely careful not to get too close to those gigantic meat-eating jaws. And oh man, how amazing would it be to witness a Brachiosaurus munching on the tops of trees with its long neck? Or watch a Triceratops using its horns to defend itself? Maybe I could even discover a new species of dinosaur that hasn't been found in the fossil record yet. Just being in the presence of those ancient creatures would be mind-blowing.After my dinosaur adventure, I'd set the time machine to the era of the ancient Egyptians around 3000 BC. The pyramids, the Sphinx, hieroglyphics, mummies – I'm fascinated by it all. I'd get to see how those incredible monuments like the Great Pyramids of Giza were actually constructed using just primitive tools and manpower. I could learn all about the Egyptian gods like Ra, Anubis, and Isis straight from the source. And I'd have to make sure not to get mummified myself! The ancient Egyptians had so many strange rituals and beliefs that would seem bizarre today. Experiencing that culture firsthand would allow me to understand it like no history book ever could.From ancient Egypt, I'd fast forward to medieval Europe in the 1400s. I'd get to see fire-breathing dragons...just kidding! But I would get to see brave knights clashing with swords and lances in epic jousting tournaments. I'd witness the extravagance of the royal families who ruled with absolute power, dressing in lavish clothing and feasting on huge banquets. It was also an era of great exploration as Europeans like Christopher Columbus were setting sail across the oceans to discover new lands. I could even join one of those voyages and be among the first to lay eyes on the Americas! Of course, I'd also have to be on the lookout for the black plague which was ravaging populations during thatperiod. The middle ages were a chaotic, turbulent time that would be both marvelous and miserable to witness up close.After getting my fill of kings, queens, and crusades, I'd head to the eighties in good ol' 1985. I know that decade might seem random, but as a kid today, I'm really curious what life was like back when my parents were my age. They're always talking about things like Mt. St. Helens erupting, the Challenger space shuttle disaster, watching Michael Jackson's "Thriller" music video when it first aired, and playing these crazy video games like Pac-Man and Donkey Kong. It would be so rad to experience that iconic decade of big hair, parachute pants, and tape cassettes for myself. I could cruise around in a vintage DeLorean blasting Bon Jovi from the speakers and no one would even bat an eye! That time period just seemed like one big party from what my parents describe.Once I got my fill of neon windbreakers and Walkmans, I'd push the time machine's throttle all the way to the year 3000. Can you imagine how mind-bendingly advanced civilization would be a thousand years into the future? What will cities look like with another millennium of architectural and technological progress? Will people have figured out anti-gravity technology and be zipping around in flying cars? Will we have made contactwith alien civilizations or colonized other planets? The future possibilities are endless and staggering to contemplate. Although...part of me worries that maybe by the year 3000 the Earth will be a barren, uninhabitable wasteland after centuries of environmental destruction. In that case, I'd quickly want to loop back to the present day! Either way, seeing the world of the 31st century would be the adventure of a lifetime.With an incredible time travel machine at my disposal, I could bear witness to all the most monumental periods in the history of Earth and humanity. I'd get to walk alongside dinosaurs, pharaohs, knights, and possibly even future humanoids. My adventures across the eons would make me an expert on virtually every subject - I'd be like a walking, talking encyclopedia! Although, I suppose if I started blurting out facts about things that haven't happened yet, people might think I'm some sort of time traveling wizard. Come to think of it, maybe I shouldn't go around boasting too much about my awesome time traveling experiences. But it sure would be an unforgettable, epic journey!篇2Time Travel MachineIf you could travel through time, where would you go? To the past or the future? I've thought about this a lot and I think I would want to go to both! There are so many interesting times and places I would love to explore.First, I would use my time travel machine to go back millions of years to the time of the dinosaurs. Can you imagine seeing those huge creatures stomping around? The plant-eating ones would be fascinating to watch as they munched on ferns and trees. But I wouldn't want to get too close to the meat-eaters like T-Rex! Those massive jaws filled with teeth could bite me in half. I'd just observe them from a safe distance in my time machine.It would be so cool to see the prehistoric landscapes before humans existed. Massive ferns and vegetation everywhere with volcanic mountains spewing lava and ash. A real life "Land Before Time"! Maybe I could even collect some dinosaur fossils or dino poop to bring back as a souvenir. I could be like a real paleontologist.Next, I would go forward just a few thousand years to ancient civilizations like Egypt, Greece, Rome, and China. So much amazing history and culture happened during those times. In Egypt, I could explore the pyramids and sphinx up close andpersonal. I'd try to avoid the mummies though, those still freak me out!In ancient Greece, I'd love to attend the original Olympic games and watch the athletes compete. The wrestling, running, and javelin throwing events sound fun, but I'd skip the really brutal stuff like boxing where you could actually kill your opponent. Yikes!Can you imagine getting to meet great minds like Aristotle, Socrates, and Plato? I could discuss philosophy with them and pick their brains about their ideas. They were hugely influential thinkers whose writings are still studied today.Over in ancient Rome, I'd get to see the Colosseum, roman baths, and check out the famous roads they built across Europe. Of course I'd keep my distance from the gory gladiator battles where they fought to the death. I'd hate to get caught up in the violence of those events.I'd spend a lot of time in ancient China as well. It would be mesmerizing to see the process of building the Great Wall and the Terracotta Warriors up close. If I spoke the language, I could learn so much from the scholars and inventors who lived back then too.After exploring the ancient past, I think I'd skip ahead a few hundred years at a time to see how the world progressed and changed over the centuries. Maybe I'd check out medieval times in Europe and the Middle Ages. I could observe feudal societies, jousting tournaments, and lives of kings, queens, and peasants.Of course, I'd need to be very careful during times of disease, famine, and war which were pretty common back then. I'd try to steer clear of the Black Plague for sure! That pandemic sounds absolutely terrifying.As I got closer to modern times, it could be fascinating to witness major historical events like the American or French Revolutions. Can you imagine being there when the Bastille was stormed in Paris? But I'd hate to get caught in the crossfire, so I'd want to keep my distance and just watch safely from my time machine.The same goes for major battles like the Civil War or World War II. I'd feel lucky to see those unfold in person, but absolutely wouldn't want to get involved in any fighting or violence. Hopefully the time machine has a good invisibility setting for those kinds of situations.I'd need to spend a good amount of time in the future too though. I'm really curious what kinds of technological andscientific advancements will happen in the next 100-500 years. Will we develop hyper-speed travel to explore the galaxy? Will robots and artificial intelligence become smarter than humans?It would be amazing to see future cities with flying cars, holograms, and super tall buildings. And things like cures for diseases, exploring other planets, and who knows what other mind-blowing things brilliant scientists and inventors will create in the centuries ahead.At the same time, I'd be nervous to go too far into the future in case things have gone horribly wrong due to pollution, climate change, war, or something else. A total apocalypse situation is not what I'd want to time travel into!After all my adventuring across millennium, I think I'd feel pretty blessed to make it back safely to my regular life in the present day. As much as I'd love to experience different time periods for a visit, I'd miss my family, friends, video games, and modern comforts like heating, plumbing, and air conditioning if I had to live without them for too long.So in the end, my time travel machine would be best used for short trips to explore and learn, not to re-locate permanently.I could snap photos, collect a few relics, and gain knowledge and perspective. But then I'd be happy to return back home to the21st century when I'm done. At least until my next time travel adventure!What about you? If you had a time travel machine, where would you go and what would you want to see and do? The possibilities are endless across all of human history and into the future. Maybe one day, if science figures it out, we could actually build real time machines to go on these journeys. A kid can dream, right? Until then, we'll just have to time travel in our minds using our powerful imaginations.篇3The Time Travel MachineWhoa, did you know that scientists are trying to build an actual time machine? How crazy is that? I can't even imagine being able to travel through time. Just think of all the adventures we could have!If I had a time travel machine, the first place I would go is to the future. I'd want to visit the year 3000 to see what the world is like. Will we have flying cars and robots that do all our chores? Or will the planet be a nuclear wasteland after World War 5? I'm really hoping for the flying cars!I'd also travel to the future to get a peek at future technology. Maybe I could bring back a hologram communicator or a teleportation device. That would be the best show and tell item ever at school! "Here's my time travel machine, oh and also this teleporter I brought from the year 2500." I'd be the coolest kid ever.After visiting the future, I think I'd want to go way back in time to the prehistoric era when dinosaurs roamed the Earth. Could you imagine seeing a real life T-Rex? I'd try to make friends with a Triceratops. "Here Tricie Tricie, want this plant I gathered for you?" As long as he doesn't mistake me for food, we'd be great pals.It would be so amazing to see these giant beasts that are now just skeletons in museums. I'd take back a dinosaur tooth to show my classmates. Maybe I could even bring back a life-sized dinosaur fossil! Our classroom could have the coolest show and tell day ever.However, I probably wouldn't want to stick around in dinosaur times for too long. I'm sure it was pretty smelly and dangerous what with all those meat-eaters around. I'd rather do some dinosaur watching and then head back to the safety of my own time period.After hanging with the dinosaurs, I'd go visit ancient civilizations like Rome or Greece. It would be so neat to see what life was like back then. I could watch the gladiators fight in the Colosseum or see Plato teaching his students. Maybe I could even learn some cool fighting moves from a Roman soldier!Man, can you imagine playing ancient Roman video games though? "Hello, and welcome to Catherius' Ultraviolent Gladiator Battle Spectacular! Please grab a controller rock and choose your fighter!" Or curling up on a Roman couch and watching ancient Greek sitcoms? "By Jupiter's sandals, Achilles, why does your wife Penelope never stop nagging?"Perhaps I could bring back some vintage Roman pottery or ancient Greek jewelry as a souvenir. I could wear a golden laurel wreath to school to show I traveled to ancient times. Maybe I'd even dress up as a Roman emperor using old toga bedsheets. "Friends, Romans, countrymen, lend me your... juice boxes!"Eventually after visiting the ancient world, I'd have to take the time machine to the Middle Ages. I'd arrive on a medieval castle's drawbridge demanding, "Hello! I come from the future world of... the year 2023. You must let Sir Steve enter your fortress bricccckkk!"Once inside, I could attend a knight's tournament and see jousting competitions and brave heroes fight evil sorcerers. "Have at thee, foul wizard! For I am the courageous Sir Steve, protector of sauce packets and dinosauresias throughout the land!"I'd challenge the Black Knight to a duel by throwing CapriSuns at him. When he chuckles at my weapon of choice, I'd say "You think juice boxes are funny? We'll see how you like getting strawberry kiwi in your helm, varlet!" Victoriously, I'd CapriSun bath in his honor.After my chivalrous medieval adventures, I'd take a quick trip to the American Old West. I'd ride horses, lasso cattle, and get into cowboy shootouts. "This town ain't big enough for the two of us, pardner. Now go on, git!" As the villainous outlaw, Dangerous Dan McGravy, tries to take over the small town of Muffin Tops, The Kid (that's me) comes riding in to save the day.I'd wear a ten gallon hat, cowboy boots, and get TWO six shooters that shoot rubber bands. I'd cherrycherrycherryhoho from a high window, besting Dan's henchmen every time. After sending Dan and his goons packing, I'd celebrate by eating a whole bucket of soapberries, drinking From a spit bucket, and dancing with the saloon's entertainment。
高一英语太空生活单选题50题
高一英语太空生活单选题50题1. The first human to walk on the moon was Neil Armstrong in _.A. 1969B. 1979C. 1989D. 1999答案:A。
解析:1969年美国宇航员尼尔·阿姆斯特朗成为第一个在月球上行走的人类,这是非常著名的太空探索历史事件,1979、1989、1999年都不符合这一事实,本题主要考查对这一重要太空探索事件年份的记忆,以及数字在英语中的表达。
2. Yuri Gagarin, the first man in space, was from _.A. RussiaB. AmericaC. ChinaD. Britain答案:A。
解析:尤里·加加林是苏联( 现在的俄罗斯)的宇航员,他是第一个进入太空的人类。
美国、中国、英国都不是加加林的国籍。
本题考查对太空探索先驱者国籍的了解,以及国家名称的英语单词。
3. Which of the following was an important event in space exploration in 1957?A. The launch of Sputnik 1B. The first space shuttle flightC. The building of the International Space StationD. The first manned mission to Mars答案:A。
解析:1957年苏联发射了斯普特尼克1号,这是太空探索中的一个重要事件。
而太空梭的首次飞行、国际空间站的建造、首次载人火星任务都不是发生在1957年的。
本题考查对1957年这一特定年份太空探索重要事件的记忆,同时涉及到事件名称的英语表达。
4. _ is known as the "father of modern rocketry".A. Konstantin TsiolkovskyB. Albert EinsteinC. Isaac NewtonD. Galileo Galilei答案:A。
恐龙岛防摔代码
恐龙岛防摔代码【实用版】目录1.恐龙岛防摔代码的背景和意义2.恐龙岛防摔代码的具体内容和实现方式3.恐龙岛防摔代码的实际应用和效果4.对恐龙岛防摔代码的评价和展望正文1.恐龙岛防摔代码的背景和意义恐龙岛防摔代码,是指一种用于保护网站免受恶意攻击的编程技术。
它的出现源于互联网的普及和网络攻击手段的日益翻新,使得许多网站面临着被攻击、被篡改、甚至被摧毁的风险。
为了保护网站的安全,程序员们研发出了一种名为“恐龙岛防摔”的代码,意在通过设置一些陷阱和障碍,让攻击者无法成功入侵网站。
2.恐龙岛防摔代码的具体内容和实现方式恐龙岛防摔代码的核心思想是增加网站的复杂性和迷惑性,让攻击者难以找到攻击的入口。
具体来说,这种代码通常包括以下几个方面:(1)设置访问权限:通过设置访问权限,可以让攻击者无法访问网站的核心部分,从而保护网站的安全。
(2)加密重要信息:通过对网站的重要信息进行加密,可以让攻击者难以获取网站的关键数据,从而降低网站被攻击的风险。
(3)设置陷阱:通过设置一些陷阱,可以让攻击者在攻击过程中受到误导,从而降低攻击的威力。
3.恐龙岛防摔代码的实际应用和效果恐龙岛防摔代码在实际应用中,表现出了良好的效果。
许多网站在采用了这种代码之后,成功抵御了恶意攻击,保证了网站的正常运行。
同时,这种代码也提高了程序员们的安全意识,让他们更加重视网站的安全问题。
4.对恐龙岛防摔代码的评价和展望总体来说,恐龙岛防摔代码是一种有效的网站安全保护手段。
它不仅可以帮助网站抵御恶意攻击,还可以提高程序员们的安全意识。
然而,随着网络攻击手段的不断升级,恐龙岛防摔代码也需要不断更新和完善,以应对新的挑战。
Space-Shuttle-Challenger
On Jan 28, 1986, at 11.38 am EST, the space shuttle challenger was launched from Cape Canaveral, Florida. The mission ended 73 seconds later when the Challenger exploded. All 7 crew members were killed.
“Since the risk of O-ring erosion was accepted and indeed expected, it was no longer considered an anomaly to be resolved before the next flight. ... I concluded that we’re taking a risk every time. We all signed up for that risk. ... We’d be taking essentially the same risk on Jan. 28 that we have been ever since we first saw O-ring erosion.”
Division of Roles
“Well, it’s time to make a management decision. ... It's time to take off your engineering hat and put on your management hat." (Jerry Mason, SVP Thiokol)
To what extent was the case a failure of organizational sensemaking?
恐龙岛防摔代码
恐龙岛防摔代码摘要:1.恐龙岛防摔代码的背景2.恐龙岛防摔代码的实施过程3.恐龙岛防摔代码的实际应用4.恐龙岛防摔代码的意义和影响正文:1.恐龙岛防摔代码的背景恐龙岛防摔代码,是指在恐龙岛游戏中,玩家通过输入一段特定的代码,可以使角色在游戏中摔倒时不会死亡,从而保证游戏的顺利进行。
这种代码的出现,源于玩家对于游戏规则的探索和对于游戏乐趣的追求。
2.恐龙岛防摔代码的实施过程恐龙岛防摔代码的实施过程主要包括以下几个步骤:首先,玩家需要在游戏中积累足够的经验,以便能够解锁代码的输入界面。
其次,玩家需要在代码输入界面中,输入正确的防摔代码。
这些代码通常由一串数字和字母组成,需要玩家具备一定的逻辑思维和数学能力。
最后,玩家需要按下回车键,确认输入的代码。
如果输入的代码正确,角色在游戏中摔倒时就不会死亡。
3.恐龙岛防摔代码的实际应用恐龙岛防摔代码的实际应用主要体现在以下几个方面:首先,防摔代码可以提高游戏的趣味性。
玩家在游戏中,可以通过输入防摔代码,体验到不同的游戏乐趣。
其次,防摔代码可以提高游戏的挑战性。
玩家在输入防摔代码时,需要具备一定的逻辑思维和数学能力,这对于提高玩家的智力水平具有积极的作用。
最后,防摔代码可以提高游戏的可玩性。
玩家在游戏中,可以通过输入防摔代码,实现更多的游戏目标,从而提高游戏的可玩性。
4.恐龙岛防摔代码的意义和影响恐龙岛防摔代码的出现,对于游戏的发展和玩家的成长都具有积极的意义和影响。
首先,防摔代码的出现,有助于提高游戏的质量和水平。
游戏开发者可以通过防摔代码的设置,提高游戏的趣味性和挑战性,从而吸引更多的玩家。
其次,防摔代码的出现,有助于提高玩家的智力水平。
玩家在输入防摔代码的过程中,需要运用逻辑思维和数学能力,这对于提高玩家的智力水平具有积极的作用。
最后,防摔代码的出现,有助于促进玩家之间的交流和合作。
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Nineteen years ago, almost to the day, we lost three astronauts in a terrible accident on the ground. But we've never lost an astronaut in flight. We've never had a tragedy like this. And perhaps we've forgotten the courage it took for the crew of the shuttle. But they, the Challenger Seven, were aware of the dangers, but overcame them and did their jobs brilliantly. We mourn seven heroes: Michael Smith, Dick Scobee, Judith Resnik, Ronald McNair, Ellison Onizuka, Gregory Jarvis, and Christa McAuliffe. We mourn their loss as a nation together.
I want to add that I wish I could talk to every man and woman who works for NASA, or who worked on this mission and tell them: "Your dedication and professionalism have moved and impressed us for decades. And we know of your anguish. We share it."
We've grown used to wonders in this century. It's hard to dazzle us. But for twenty-five years the United States space program has been doing just that. We've grown used to the idea of space, and, perhaps we forget that we've only just begun. We're still pioneers. They, the members of the Challenger crew, were pioneers.
There's a coincidence today. On this day three hundred and ninety years ago, the great explorer Sir Francis Drake died aboard ship off the coast of Panama. In his lifetime the great frontiers were the oceans, and a historian later said, "He lived by the sea, died on it, and was buried in it." Well, today, we can say of the Challenger crew: Their dedication was, like Drake's, complete.
Thank you.
George W. Bush: "Columbia" Disaster Address
We'll continue our quest in space. There will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. Nothing ends here; our hopes and our journeys continue.
[AUTHENTICITY CERTIFIED: Text version below transcribed directly from audio.]
Ladies and Gentlemen, I'd planned to speak to you tonight to report on the state of the Union, but the events of earlier today have led me to change those plans. Today is a day for mourning and remembering. Nancy and I are pained to the core by the tragedy of the shuttle Challenger. We know we share this pain with all of the people of our country. This is truly a national loss.
I've always had great faith in and respect for our space program. And what happened today does nothing to diminish it. We don't hide our space program. We don't keep secrets and cover things up. We do it all up front and in public. That's the way freedom is, and we wouldn't change it for a minute.
Ronald Reagan: The Space Shuttle "Challenger" Tragedy Address
"We'll continue our quest in space. There will be more shuttle flights...more volunteers, more civilians, more teachers in space."
For the families of the seven, we cannot bear, as you do, the full impact of this tragedy. But we feel the loss, and we're thinking about you so very much. Your loved ones were daring and brave, and they had that special grace, that special spirit that says, "Give me a challenge, and I'll meet it with joy." They had a hunger to explore the universe and discover its truths. They wished to serve, and they did. They served all of us.
The crew of the space shuttle Challenger honored us by the manner in which they lived their lives. We will never forget them, nor the last time we saw them, this morning, as they prepared for their journey and waved goodbye and "slipped the surly bonds of earth" to "touch the face of God."
And I want to say something to the schoolchildren of America who were watching the live coverage of the shuttle's take-off. I know it's hard to understand, but sometimes painful things like this happen. It's all part of the process of exploration and discovery. It's all part of taking a chance and expanding man's horizons. The future doesn't belong to the fainthearted; it belongs to the brave. The Challenger crew was pulling us into the future, and we'll continue to follow them.