专业英语课后习题答案
专业英语课后习题答案
专业英语课后习题答案Chapter1I. 1.Application software2. -128 1273. system software4. hardware system software system5.microcomputers, minicomputers, mainframe computers, supercomputersII. 1. false 2. false 3. false 4. true 5.trueIII. (1) b (2) c (3)a (4) dIV. (1)编码技术(2)应用软件(3) 浮点数据(4)分时(5)存储容量VIII．1.By using various coding techniques, groups of bits can be made to represent not only binary numbers but also other discrete symbols通过应用多种编码技术，一组二进制数字不但可以表示二进制数据，而且还可以表示其它的离散符号2.System software includes not only the complex programs used by technicians to create application software in the first place but also the organizational programs needed to start up the computer and govern its use of other programs.系统软件不仅包括技术人员用于创建应用软件的复杂程序，而且还包括用于启动计算机和提供给其他程序使用的管理程序。
3.Data are numbers and other binary-code information that are operated on to achieve required computational results.数据是数字和其他的二进制代码信息，通过处理这些数据得到所需要的计算结果。
机械工业出版社第三版 计算机专业英语课后习题答案
Unit One/Section AI.Fill in the blanks with the information given in the text:1.Charles Babbage;Augusta Ada Byron2.input;output3.VLSI4.workstations;mainframes5.vacuum;transistors6.instructions;software7.digit;eight;byte8.microminiaturization;chipII.Translate the following terms or phrases from English into Chinese and vice versa:1.artificial intelligence人工智能2.paper-tape reader纸带阅读器3.optical computer光计算机4.neural network神经网络5.instruction set指令集6.parallel processing并行处理7.difference engine差分机8.versatile logical element通用逻辑元件9.silicon substrate硅衬底10.vacuum tube真空管11.数据的存储与处理the storage and handling of data12.超大规模集成电路very large-scale integrated circuit13.中央处理器central processing unit14.个人计算机personal computer15.模拟计算机analogue computer16.数字计算机digital computer17.通用计算机general-purpose computer18.处理器芯片processor chip19.操作指令operating instructions20.输入设备input deviceIII.Fill in each of the blanks with one of the words given in the following list,making changes if necessary:We can define a computer as a device that accepts input,processes data,stores data,and produces output.According to the mode of processing,computers are either analog or digital.They can also be classified as mainframes,minicomputers,workstations,or microcomputers.All else(for example,the age of the machine)being equal,this categorization provides some indication of the computer’s speed,size,cost,and abilities.Ever since the advent of computers,there have been constant changes.First-generationcomputers of historic significance,such as UNIVAC(通用自动计算机),introduced intheearly 1950s,were based on vacuum tubes.Second-generation computers,appearing in theearly 1960s,were those in which transistors replaced vacuum tubes.In third-generationcomputers,dating from the 1960s,integrated circuits replaced transistors.In fourth-generationcomputers such as microcomputers,which first appeared in the mid-1970s,large-scaleintegration enabled thousands of circuits to be incorporated on one chip.Fifth-generationcomputers are expected to combine very-large-scale integration with sophisticated approachesto computing,including artificial intelligence and true distributed processing.IV.Translate the following passage from English into Chinese:计算机将变得更加先进，也将变得更加容易使用。
汽车专业英语课后题答案
CHARPTE ONE ENGINEUnit 11、回答问题(1)The purpose of using a liner is that, if the cylinder is damaged, the liner can be removed and replaced rather easily.(2) It mainly consists of piston, compression rings, oil control rings, oil control rings, piston pin and connecting rod.(3) It includes crankshaft, bearings, flywheel, harmonic balancer, timing gear, and front and rear seals.(4) The piston reciprocating motion changes to the crankshaft rotary motion by connecting rod.(5) It is used to transfer the camshaft lift to the valve assembly.(6) The rotary motion of the camshaft changes to reciprocating motion by lifters.2、英译汉（1）气门弹簧座圈（2）气门传动机构（3）排气歧管垫（4）气门杆（5）往复式发动机（6）压缩比（7）排气冲程（8）连杆轴承3、汉译英（1）crankshaft main bearing（2）cylinder head bolt （3）piston ring（4）connecting rod bearing （5）cylinder head gasket （6）connecting rod bolt （7） rocker arm shaft （8）hydraulic lifter4、翻译句子（1）这个问题通常与汽缸盖内破裂或者变形有关，缸体破裂可能还会引起燃烧室冷却，导致排放白色尾气。
应用化学专业英语课后练习题含答案
5.A heterogeneous mixture is one in which the components are evenly distributed throughout.
Answer: False.
Short answer
4.What is the difference between an acid and a base?
Answer: An enzyme is a protein that acts as a catalyst in a biological reaction, lowering the activation energy required for the reaction to occur.
6.What is a heterogeneous mixture?
4.What is the definition of a chemical reaction?
Answer: A chemical reaction is a process in which one or more substances are transformed into different substances through the breaking and forming of chemical bonds.
Chapter 2
True or False
3.The pH scale is a measure of the concentration of hydrogen ions in a solution.
Answer: True.
4.A catalyst is a substance that changes the rate of a chemical reaction without being consumed in the reaction itself.
专业英语课后习题答案
1. Put the following into Chinese.（1）Ohm’s law states that the voltage across a resistor is directly proportional to the current flowing through the resistor. The constant of proportionality is the resistance value of the resistor in ohms.流过电路里电阻的电流，与加在电阻两端的电压成正比，与电阻的阻值成反比。
这就是欧姆定律。
（2）Many materials, however, closely approximate an ideal linear resistor over a desired operating region.不过，许多材料在规定的工作范围内非常接近理想线性电阻。
（3）It should be noted that an ideal voltage source (dependent or independent ) will produce any current required to ensure that the terminal voltage is as stated, whereas an ideal current source will produce the necessary voltage to ensure the stated current flow.应该注意：一个理想电压源（独立或受控）可向电路提供任意电流以保证其端电压为规定值，而电流源可向电路提供任意电压以保证其规定电流。
（4）A different class of relationship occurs because of the restriction that some specific type of network element places on the variables. Still another class of relationship is one between several variable of the same type which occurs as the result of the network configuration, i. e., the manner in which the various element of the network are interconnected.一种不同类型的关系是由于网络元件的某种特定类型的连接对变量的约束。
大学专业用途英语课后习题答案
大学专业用途英语课后习题答案1. You'd better ( ) a copy of the whole article for yourself. [单选题] *A. make(正确答案)B. makingC. to makeD. made2. He is very strict. It is no use ( ) yourself to him. [单选题] *A. explainedB. to explainC. explaining(正确答案)D. explain3. All people must pull together ( ) the project can be finished on schedule. [单选题] *A. as thoughB. ifC. even thoughD. in order that(正确答案)4. I wish I ( ) shopping with you yesterday, because I was very bored at home then. [单选题] *A. had gone(正确答案)B. would goC. could have goneD. went5. If ( ) in a warm place, these flowers will bloom in late May. [单选题] *A. to plantB. planted(正确答案)C. plantD. planting6. My father recommended two new books to me, ( ) seemed to be very interesting. [单选题] *A. both of thatB. all of thatC. both of which(正确答案)D. all of which7. Tom will never forget the days ( ) he lived in the remote village with his parents. [单选题] *A. whatB. whichC. when(正确答案)D. why8. Don't expect too much from her. The more you expect, ( ) you will become. [单选题] *A. the disappointedB. more disappointedC. the most disappointedD. the more disappointed(正确答案)9. The weather is quite fine. Let's go swimming, ( )？ [单选题] *A. will youB. shall we(正确答案)C. do weD. do you10. There is no doubt that the residents living in this building can have free ( ) to the swimming pool. [单选题] *A. excessB. access(正确答案)C. accelerateD. assess11. If you want to strengthen your friendship with your friends, you should ( ) more time communicating with them. [单选题] *A. spend(正确答案)B. takeC. payD. cost12. Tom has been nervous for three days, since he will have a(n) ( ) for the manager's job. [单选题] *A. reviewB. viewC. chatD. interview(正确答案)13. But for your advice, I ( ) the task arranged by the leader yesterday. [单选题] *A. shall not finishB. could not have finished(正确答案)C. shall finishD. could finish14. The aim of this meeting is ( ) how to solve the serious crisis. [单选题] *A. to discuss(正确答案)B. discussingC. to discussingD. discussed15. This building is named ( ) his name in memory of his great invention. [单选题] *A. upB. after(正确答案)C. atD. in16. ( ) are quite humorous and everyone likes making friends with them. [单选题] *A. The Bushes(正确答案)B. A BushC. BushesD. The Bush17. One way to manage time wisely is to give ( ) to what is the most important. [单选题] *A. principleB. permissionC. priority(正确答案)D. process18. The teachers don't know ( ), because the meeting rooms are being decorated. [单选题] *A. where should the meeting be heldB. which should the meeting be heldC. which the meeting should be heldD. where the meeting should be held(正确答案)19. Due to the outbreak of the epidemic, many outdoor activities have been ( ). [单选题] *A. called forB. called off(正确答案)C. called backD. called in20. According to the report, some experts ( ) the shop with selling cups with insulting ads. [单选题] *A. charge(正确答案)B. accuseC. blameD. condemn21. Some people ( ) it for granted that what they pick up in the street belongs to them. [单选题] *A. makeB. take(正确答案)C. getD. regard22. Because there is enough time, the teacher advises students ( ) their papers again. [单选题] *A. examinedB. to examine(正确答案)C. to examiningD. examine23. Many people suffer from hunger in this country ( ) the decrease of food imports this year. [单选题] *A. instead ofB. regardless ofC. due to(正确答案)D. as to24. I ( ) reading the novel by yesterday, so I buy a new novel today. [单选题] *A. had finished(正确答案)B. finishedC. finishD. would finish25. Most foreign people think ( ) very difficult to learn to write Chinese characters. [单选题] *A. thatB. thisC. it(正确答案)D. one26. Mary heard her name called by someone, whose voice was very familiar ( ) her. [单选题] *A. withB. to(正确答案)C. onD. in27. One ( ) of extra-curricular activities is that the kids involved can gain friendship. [单选题] *A. flexibilityB. benefit(正确答案)C. privilegeD. interest28. I will tell the truth to him if he ( ) the funeral the day after tomorrow. [单选题] *A. would attendB. will have attendedC. attends(正确答案)D. will attend29. His ( ) of the accident conflicted with that of the other witnesses. However, I believed what he said was true. [单选题] *A. expectationB. instructionC. responseD. account(正确答案)30. Every time I run into difficulty, he is always the first ( ) help. [单选题] *A. to be offeredB. to offer(正确答案)C. offerD. offering31. Many women have to resign in order to ( ) their children wholeheartedly. [单选题] *A. bring up(正确答案)B. put upC. break upD. build up32. My good friend Lily told me that she ( ) to New York the next month. [单选题] *A. wentB. goesC. would go(正确答案)D. will have gone33. It is natural that people ( ) feel upset for no reason. It usually won't last too long. [单选题] *A. sometimes(正确答案)B. some timesC. a timeD. some time34. Our company wants to invest in the property market, so we look forward to ( ) with that company. [单选题] *A. cooperateB. cooperating(正确答案)C. cooperatedD. being cooperated35. It is really ( ) to borrow money from your elder sister just to help a selfish stranger pay off his debt. [单选题] *A. ridiculous(正确答案)B. stubbornC. splendidD. popular36. The kids in the kindergarten help each other and never quarrel, thus creating a ( ) atmosphere. [单选题] *A. commonB. lonelyC. peaceful(正确答案)D. steady37. You ( ) to make so many preparations; the job has been assigned to an experienced fellow. [单选题] *A. needn't have bothered(正确答案)B. shouldn't have botheredC. mustn't have botheredD. couldn't have bothered38. ( ) in the park yesterday afternoon, my mother met an old friend. [单选题] *A. To walkB. Walking(正确答案)C. WalkD. Walked39. Mary behaved in a specially confident manner ( ) she had understood the problem completely. [单选题] *A. as if(正确答案)B. whetherC. althoughD. than40. As we all know, success results from hard work; ( ) efforts, nothing can be achieved. [单选题] *A. except forB. without(正确答案)C. despiteD. besides41. His advice is that your father ( ) more exercise outdoors in the morning. [单选题] *A. doneB. will doC. should do(正确答案)D. does42. From this book, you can know ( ) those animals escape from their natural enemies. [单选题] *A. whoB. how(正确答案)C. whereD. it43. Plants are very ( ) to climate change. Therefore, many tree species are faced with extinction because of global warming. [单选题] *A. sensibleB. consciousC. sensitive(正确答案)D. independent44. His two dogs made a mess in his room, ( ) he didn't want to punish them. [单选题] *A. andB. orC. becauseD. but(正确答案)45. Hearing the words, he didn't seem to be offended; ( ), he looked very happy. [单选题] *A. in a wordB. in other wordsC. on the wholeD. on the contrary(正确答案)46. ( ) the salary is rather low, many young people have resigned in recent months. [单选题] *A. Because(正确答案)B. ForC. AfterD. So that47. What the little girl wants ( ) a pen, and what her elder brother wants ( ) two books. [单选题] *A. are; areB. is; isC. is; are(正确答案)D. are; is48. Most universities don't ( ) that every student can graduate with a certificate if they don't study hard. [单选题] *A. guarantee(正确答案)B. provideC. requireD. complete49. The company has recently taken on fifty people ( ) live in the local area. [单选题] *A. whichB. whoseC. thoseD. who(正确答案)50. All the afternoon my colleagues and I ( ) a report in the meeting room. [单选题] *A. prepareB. were to prepareC. have been preparing(正确答案)D. had been preparing5I. It is no use worrying about the future all the time. No one knows what will ( ) next minute. [单选题] *A. take placeB. get onC. disappearD. happen(正确答案)52. Alice, please turn down the music. I ( ) an important phone call at present. [单选题] *A. answerB. answeredC. have answeredD. am answering(正确答案)53. After you use my dictionary and English book, you should place them ( ) they used to be. [单选题] *A. the momentB. where(正确答案)C. whenD. that54. ( ) runs the fastest in the competition will be given an expensive prize. [单选题] *A. Whoever(正确答案)B. WhomeverC. WhomD. Who55. If you want these new employees to work out the answer, two hours and a half ( ) not enough. [单选题] *A. to beB. beingC. areD. is(正确答案)56. Only after they had examined the machine for several hours ( ) the problem. [单选题] *A. they foundB. did they find(正确答案)C. they findD. do they find57. ( ), he doesn't know how to get on with other people. [单选题] *A. Adult as he is(正确答案)B. Adult he is asC. Adult he as isD. An adult as he is58. It was ( ) that they went for a picnic in the park last weekend. [单选题] *A. so nice a weatherB. such nice weather(正确答案)C. nice weather soD. too nice weather59. It is advisable to adjust the measures on the ( ) of short-time predictions. [单选题] *A. basis(正确答案)B. baseC. foundationD. ground60. ( ) slowly he runs! I don't think he may attend the lecture on time. [单选题] *A. WhatB. ItC. How(正确答案)D. Whether。
护理专业英语课后答案习题.doc
护理专业英语课后答案习题(2)1. T2. F3. T4. T5. F6. F7. F Task 2: Sentence Completion 1. visit patients in their homes 2. take care of their own illness 3. type 1 diabetes4. her public health certificate5. the day-to-day autonomy?Study PracticeI. Reading Comprehension1. B2. D3. C4. A5. B II. Words to Practice1. ambulation2. discharge3. abuse4. caregivers5. Counseling6. supervision7. tuberculosis8. disabled9. communicable 10. regimen III. TranslationA. Translate the following sentences into Chinese.1. 以往社区护士享受着在标准白天上班时间值班，大多从周一工作到周五。
然而，随着社区提供24小时服务趋向的出现，许多社区护士与其他医疗机构护士一样，需要倒班和在周末工作。
2. 一级预防是指预防疾病、外伤和残疾发生的措施。
此级别的预防针对的是对疾病易感，但还没有出现可识别的病理变化的个体和群体。
一级预防包含的措施很广，如健康促进、环境保护和特殊保护等。
B. Translate the following sentences into English.1. Community nurses should collaborate with colleagues and other health care professionals for the provision of client-centered care.2. Home care is defined as the provision of health services by formal and informal caregivers in the home.3. Professional autonomy is one of the essential features of nursing as a profession. Nurses have autonomy and independence in decision making and practice.4. The nursing shortage is well-documented, and it has become so severe thatexperts use the term nursing shortage and nursing crisis interchangeably.5. Primary health care should be accessible, affordable, and acceptable to all individuals who require them, especially to those vulnerable groups. IV. Audio TasksTask 1: Short-answer Questions 1. The first line of defense.2. The infection with Human immunodeficiency Virus.3. The body s immune system becomes compromised.4. After T cell counts reach a dangerous low level.5. By blood tests. Task 2: Spot Dictation1. infectious2. destroying3. Syndrome4. attaches5. production6. compromised7. susceptible8. Indicating护理专业英语课后答案Unit5Warm-up Tasks护理专业英语课后答案习题(3)1. lots of time and even some support2. the first six months of life3. before the baby is born4. 10 or 12 times5. aids in milk transferStudy PracticeI. Reading Comprehension1. B2. B3. C4. A5. D II. Words to Practice1. manifest 6. inferiority2. cognitive 7. apathetic3. Cohesion 8. Mutilation4. somatic 9. catheter5. rationalization 10. detachment III.TranslationA. Translate the following sentences into Chinese.1. 护士应提供启发式的合理解释来应对儿童不切实际的恐惧，并进行干预，从使恐惧造成的损伤降到最小(比如可在操作中鼓励父母陪伴，或尽可能让儿童自己作决定)。
专业英语课后习题答案unit1-9完整+10-13非完整版
Unit 1Materials science材料科学Stone age石器时代Naked eye肉眼Bronze age铜器时代Optical property光学性能Integrated circuit集成电路Mechanical strength机械强度Thermal conductivity导热“Materials science” involves investigating the relationships that exist between the structures and properties of materials. In contrast ,”materials engineering “is ,on the basis of there structure property correlations ,designing or engineering the structure of a material that produce a predetermined set of properties。
，材料工程是根据材料的结构和性质的关系来设计或操纵材料的结构以求制造出一系列可预定的性质。
从功能方面来说，材料科学家的作用是发展或合成新的材料Virtually all important properties of solid materials may be grouped into six different categories: mechanical, electrical, thermal, magnetic, optical ,and deteriorative。
固体材料的所有重要的性质可以分成六个不同的种类，机械性能、电性能、热性能、磁性能、光性能和耗。
In addition to structure and properties , two other important components are involved in the sciences and engineering of materials , namely“processing”and“performance”.除了组织性能之外，另外两个重要的性质也包括在材料科学和工程之中，即“加工”和“特性”The more familiar an engineer or scientist is with the various characteristics and structure-property relationship，as well as processing techniques of material，the more proficient and confident he or she will be to make judicious materials choices based on these criteria。
生物专业英语课后练习题含答案
生物专业英语课后练习题含答案1. Multiple Choice1.Which of the following is the most important considerationwhen designing a polymerase chn reaction (PCR)?A. The length of the primerB. The temperature of the PCRC.The amount of DNA in the sample D. The thermal stability of the DNA polymeraseAnswer: D2.Which of the following describes the function of arestriction enzyme in molecular biology?A. Restriction enzymes are used to replicate DNA.B.Restriction enzymes are used to sequence DNA. C. Restrictionenzymes are used to cut DNA at specific sites. D. Restrictionenzymes are used to amplify DNA.Answer: C3.The gel electrophoresis separates DNA fragments according towhich of following parameters?A. SequenceB. SizeC. ConcentrationD. ChargeAnswer: B4.Which of the following is not a component of a typicalprokaryotic cell?A. NucleusB. Cell wallC. RibosomeD. PlasmidAnswer: A5.Which of the following is responsible for the majority ofoxygen production on Earth?A. FungiB. AlgaeC. ProtozoaD. BacteriaAnswer: B2. Short Answer1.What is the difference between genotype and phenotype?Genotype refers to the set of genes an organism carries, while phenotype refers to the observable trts that result from the interaction between the organism’s genes and its environmen t.2.Describe the process of translation.Translation is the process by which the information encoded in mRNA is used to synthesize a protein. It occurs on ribosomes, which contn two subunits (the small subunit and the large subunit).The process begins with the small subunit binding to the mRNAmolecule; this initiates the process of recognition of the start codon (AUG). Once the start codon is identified, the ribosome will recruit the first tRNA (transfer RNA) molecule, which carries an amino acid. The amino acid is then added to the growing peptide chn as the ribosome moves along the mRNA molecule, one codon at a time. This continues until a stop codon is reached, at which point the ribosome releases the newly synthesized protein, and the mRNA molecule is degraded.3.What is the difference between prokaryotic and eukaryoticcells?Prokaryotic cells are simpler in structure than eukaryotic cells and do not have a nucleus or membrane-bound organelles. They are typically much smaller than eukaryotic cells. Eukaryotic cells, on the other hand, have a nucleus and many membrane-boundorganelles (such as mitochondria, chloroplasts, and theendoplasmic reticulum). They are generally larger and more complex than prokaryotic cells.3. True or False1.Bacteria are always harmful to humans.False2.The most diverse group of organisms on Earth is arthropods. True3.The Calvin cycle is the process by which photosynthesisoccurs.True4.Fungi are eukaryotic organisms that are primarilydecomposers.True5.RNA splicing removes introns from the primary RNA transcript,leaving only exons.True4. MatchingMatch the following terms with their correct definition or function:1.EnzymeC. Protein molecule that acts as a catalyst in a biochemicalreaction2.GlycolysisD. The process by which glucose is broken down into pyruvate3.MitochondriaA. Organelle responsible for cell respiration4.NucleusB. Organelle responsible for the storage and transmission ofgenetic informationAnswer:1.C2.D3.A4.BConclusionThis set of practice questions is designed to test your understanding of some of the key concepts in biology. By exploringtopics like genetics, cell structure, and molecular biology, you can gn a deeper appreciation for the complexity and diversity of life on Earth.By engaging with these questions and testing your knowledge, you can become a more confident and capable biologist.。
专业英语课后答案(完整)
Computing Essentials 2008练习答案Chapter 1: Information Technology, The Internet, and YouCrossword Puzzle Answers:AcrossNum. Clue Answer1 The most essential part of an information system. People7 Coordinates computer resources. Operating System10 Modifies signals for processing. Modem12 Data that has been processed by the computer. Information13 Unprocessed facts. Data14 Notebook computer that accepts handwritten input.. Tablet PCDownNum. Clue Answer2 Uses computers to become more productive.End User3 Rules or guidelines to follow when using software, hardware, and data. Procedures4 Created by word processors.Document Files5 Specialized programs that allow input and output devices to communicate. Device Drivers6 Created by database management programs.Database Files8 The physical equipment of a microcomputer.Hardware9 The world’s largest computer network.Internet13 Provides step-by-step instructions to the computer.SoftwareMultiple Choice AnswersB B A B D D ACD DMatching AnswersE F I H A C G B D JChapter 2: The Internet, The Web, and Electronic CommerceCrossword Puzzle Answers:AcrossNum. Clue Answer2 Provide users a connection to the Internet. ISP3 Unwelcome e-mail. Spam5 Explore the Web. Surf7 Internet uploading and downloading service. FTP8 Steals credit card information. Carder9 A file, such as a document or worksheet, that is attached to an e-mail message.Attachment10 Involves the sale of a product to another business. B2B13 Connection to Web resources. L ink15 Process of transferring information from a remote computer to the computer one is using.DownloadDownNum. Clue Answer1 The sites that a search engine returns after running a keyword search. Hits4 Special program written in Java. Applet5 Locates information online. Search Engine6 Location of Web resource. URL11 Program that provides access to Web Browser12 Used to block certain sites. Filter14 Provides high-speed connection using existing telephone lines. DSLNum Multiple Choice AnswersD A C C A A A A D BMatching Answersi d g e f c h j a bChapter 3: Basic Application SoftwareCrossword Puzzle Answers:AcrossNum. Clue Answer4 Rectangular area that contains messages. Window5 System to organize and retrieve data. DBMS8 Collection of individual applications. Software Suite10 Rearrange records using a field. Sort11 Formed by intersection of row and column. Cell14 Collection of related data. Database16 Flyer, report, newsletter, Web page. Document17 These make up a presentation. Slides18 Question or request for data in a database. QueryDownNum. Clue Answer1 List of commands. Menu2 Rectangular grid of rows and columns used in programs like Excel. Worksheet3 Has records and fields. Table6 Controls format and placement of slides. Master Slide7 Requests user input. Dialog Box9 Moves insertion point to next line. Word Wrap12 Series of cells. Range13 A vertical block of cells one cell wide. Column15 Contain buttons and menus. ToolbarsNum Multiple Choice AnswersD D B D D A B B C DMatching Answersj a c h b d i e g fChapter 5: System SoftwareCrossword Puzzle Answers:AcrossNum. Clue Answer5 Program that makes copies of files in case of damage or loss. Backup6 Boot that occurs when the computer is already on. Warm boot8 Combination of several utility programs in one package. Utility Suite9 Allows communication between devices and the operating system. Driver11 Concentric rings on a disk. Tracks12 Used to control and coordinate networked computers. NOSDownNum. Clue Answer1 Location to store related files. F older2 Computer that coordinates all communication between other computers.Network server3 Uses graphical elements to communicate with the operating system. GUI4 Broken-up file stored in different sectors. Fragmented5 Starting or restarting a computer. Booting7 Operating system with over 80 percent of the market. Windows10 Graphic objects on the desktop used to represent programs and other files. IconsNum Multiple Choice AnswersC D C A A A C B B A CMatching Answersj d f b g h a e i cChapter 7: Input and OutputCrossword Puzzle Answers:AcrossNum. Clue Answer6 Used to grade multiple choice exams. OMR9 Specialized digital camera that broadcasts images over the Internet. WebCam10 Records images digitally on a disk. Digital camera13 Most popular input device used for computer games. Joystick14 Delivers much clearer picture than regular TV. HDTV16 Resolution is expressed as a matrix of these dots. Pixel17 Keyboard that rolls up for storage and transport. FlexibleDownNum. Clue Answer1 The distance between each pixel. Dot pitch2 Most commonly used way to input data. Keyboard3 Button rotated to scroll through information displayed on the monitor.Wheel Button4 Most widely used type of mouse. Mechanical5 Type of terminal that does no processing. Dumb7 Number of times a screen is redrawn each second. Refresh rate8 Measure of resolution. dpi11 Keys that turn features on and off. Toggle12 Translates processed information into hard copy. Printer15 Bar code system used in supermarkets. UPCNum Multiple Choice AnswersA B A B D A D C D BMatching Answersi e f j a b g d c hChapter 9: Communications and NetworksCrossword Puzzle Answers:AcrossNum. Clue Answer5 Interprets and routs incoming radio frequencies. Base station7 Continuous electronic waves. Analog9 Configuration of a network. topology10 Network interface card. NIC11 Transfer speed or transfer rate. bps12 Short range wireless communication standard. bluetooth14 Measurement of the width of the communication channel. bandwidthDownNum. Clue Answer1 Node that requests and uses resources available from other nodes. client2 Each device in the network handles its own communications. Bus network3 Device that allows links between LANs. Network gateway4 Process that converts digital to analog. modulation6 Pieces of a message sent over the Internet. packets8 Global positioning system. GPS13 Any device that is connected to a network. node15 Uses existing telephone lines to provide high-speed connections. DSL16 Central node for other nodes. hubNum Multiple Choice AnswersC B AD C D B B D DMatching Answersg b a i h e c j d fChapter 11: Information SystemsCrossword Puzzle Answers:AcrossNum. Clue Answer3 Level of management concerned with strategic planning. Top5 Identifies, investigates, and develops new products and services. Research9 Report produced upon request. Demand10 Someone who makes decisions in a DSS. User11 Model that helps middle-level managers in long-range planning. Tactical12 Information worker involved in the creation of information. Knowledge worker 14 Concerned with calculating employee paychecks. Payroll16 Specialized information system that knowledge workers use. KWS17 Keeps track of summaries of all foregoing transactions. General ledgerDownNum. Clue Answer1 The buying of materials and services. Purchasing2 Plans, prices, promotes, sells, and distributes goods and services. M arketing4 Form that shows supply and order information. Purchase order6 Report that calls attention to unusual events. Exception7 Help top-level managers oversee operations and develop plans. ESS8 Information worker that distributes information. Data worker13 Use data from TPS to support middle managers. MIS15 Level of management concerned with decision making. MiddleNum Multiple Choice AnswersB B A D D AC C CC BMatching Answersh j f d g b a c i eChapter 13: Systems Analysis and DesignCrossword Puzzle Answers:AcrossNum. Clue Answer3 Systems implementation Conversion8 Collection of activities and elements organized to accomplish a goal. System9 Build a model that can be modified before the system is installed. Prototyping10 Automated design tool. CASE12 Approach where new system is tried in only one part of an organization. Pilot14 Shows levels of management and formal lines of authority. Organization chart15 List of questions. ChecklistDownNum. Clue Answer1 1st step in the design phase. Feasibility2 St udy an organization’s systems.Systems analysis4 System’s performance is compared to the original specifications.System audit5 Approach where new system is implemented slowly over time. Phased6 Conversion done by abandoning old system and starting the new. Direct approach7 Diagram that shows the information flow within an organization. Data flow11 Shows the relationship between input and output documents. Grid chart12 Old and new systems are operated side by side. Parallel13 The most commonly overlooked activity in the implementation phase. TrainingNum Multiple Choice AnswersA D A C D D A D A CMatching Answersg h f d c a b i j eChapter 15: Your Future and Information TechnologyCrossword Puzzle Answers:AcrossNum. Clue Answer4 Inputs customer information and other data. Data entry worker6 Repairs and installs computer components and systems. Computer Technician8 Acting in anticipation of future problems, needs, or changes. Proactive9 Develops and maintains Web sites. W ebmaster10 Plans and designs information systems. System analyst11 Prepares instruction manuals and technical reports. Technical writer12 Designs, tests, and researches encryption procedures. CryptographerDownNum. Clue Answer1 Person that is unfamiliar with computers. Na?ve2 Creates, tests, and troubleshoots computer programs. Programmer3 Person that feels learning about computers is an imposition.F rustrated4 Creates and formats publication-ready material. Desktop publisher5 Instructs users on the latest software and hardware. Computer trainer7 Person that feels the idea of using a microcomputer is overrated. CynicNum Multiple Choice Answers D B A D C D C A D BMatching Answersd j h ae i b g c f。
(完整)英语专业综合教程课后习题中译英翻译答案
1.我安排他们在小酒吧见面，但那小伙子一直都没有来。
（turn up）1. I had arranged for them to meet each other at the pub but the young man never turned up.2你无法仅凭表象判断形势是否变得对我们不利。
（tell from appearance)2. You cannot tell merely from appearance whether things will turn out unfavourable to us or not.3.那个士兵每次打仗都冲锋在前，从而赢得了最高荣誉。
（stand in the gap）3. The soldier, who stood in the gap in every battle, gained the highest honors if the country.4.主席讲话很有说服力，委员会其他成员都听从他的意见。
（yield to）4. The chairman spoke so forcefully that the rest of the committee yielded to his opinion.5.他们现在生活富裕了，但也曾经历坎坷。
(ups and down)5. They are well-to-do now, but along the way they had their ups and downs.6.这次演讲我说明两个问题。
(address oneself to)6. There are two questions to which I will address myself in this lecture.7.我们正在筹划为你举办一次盛大的圣诞聚会。
(in somebody's honour)7. We are planning a big Christmas party in your honor.8.听到那个曲子，我回想起了而同时代。
化学专业英语课后练习题含答案
化学专业英语课后练习题含答案题目：1.What is the molecular formula for acetic acid?2.What is the common name for sodium chloride?3.What is HNO3? What does it do?4.What is the chemical formula for ammonium nitrate?5.What is the difference between an organic and inorganiccompound?6.What is the difference between an acid and a base?答案：1.The molecular formula for acetic acid is C2H4O2.2.The common name for sodium chloride is table salt.3.HNO3 is nitric acid. It is a strong acid and is used in theproduction of fertilizers, explosives, and dyes.4.The chemical formula for ammonium nitrate is NH4NO3.5.An organic compound contns carbon atoms while inorganiccompounds do not.6.Acids release hydrogen ions (H+) in aqueous solutions whilebases release hydroxide ions (OH-) in aqueous solutions. Acids have a pH less than 7 while bases have a pH greater than 7.解析：1.Acetic acid is a weak acid with a sweet smell and taste. Itsmolecular formula is C2H4O2 and it is also known as ethanoic acid.It is used in the manufacture of various chemicals, solvents,coatings, and plastics.2.Sodium chloride is an inorganic compound with the chemicalformula NaCl. It is commonly used as a seasoning and preservative for food. It is also used in the chemical industry for various purposes, such as the production of chlorine, sodium hydroxide, and soda ash.3.Nitric acid is a strong acid with the chemical formula HNO3.It is a highly corrosive and toxic liquid that is used in theproduction of fertilizers, explosives, and dyes. It also has other industrial and laboratory applications, such as the etching of metals and the synthesis of organic compounds.4.Ammonium nitrate is an inorganic compound with the chemicalformula NH4NO3. It is a common fertilizer that is used to supply nitrogen to plants. It is also used as an explosive in mining, quarrying, and construction.anic compounds are based on carbon atoms, while inorganiccompounds do not contn carbon atoms. Organic compounds can befound in living organisms and are usually covalently bonded.Inorganic compounds are often ionic or covalent and are found in non-living things, such as rocks and minerals.6.Acids are compounds that release hydrogen ions (H+) in aqueous solutions, while bases release hydroxide ions (OH-) in aqueous solutions. Acids are characterized by a sour taste, and have a pH less than7. Bases are characterized by a bitter taste and slippery feel. They have a pH greater than 7. The pH scale is used to measure the acidity or basicity of a substance, with 7 being neutral.。
英语专业综合教程课后习题答案Unit 1
Key to Exercise of Unit 1:Transcript of DictationThere are generally two educational methods: / the lecture method and the group learning method. / In a lecture classroom, / the teacher dominates the class / by doing most of the talking. / Students listen and take notes. / This method is best at passing on content to students. / It prepares students for a society / that values discipline and self-control. /The problem is that students forget most of the facts / that they have mechanically memorized. / In contrast, / the teacher of a group learning classroom / appears to have no definite role at all, / wandering about from group to group. / Students do not memorize information, / but they actively generate their own ideas, / each contributing insights for the success of the group. /This method prepares students for a society / that values creative ideas. / The disadvantage is that / students have not memorized enough basic facts.II. 1. distress; 2. clutched; 3. pose4. sneaked5. preoccupation6. shackles7. curse 8. deliberationIII. 1. assure 2. discretion 3. relaxation4. humiliation5. strategy6. embarrassment7. maneuverable 8. immaturityIV. 1. lived up to 2. Headed for 3. Seek out 4. Has broken out5. groped for6. Tryi ng…on7. Go out to8. Tipped offV. 1 vague/indistinct 2 inconspicuously/unobtrusively3 self-restraint/self-control4 clever/intelligent/sensible5 manner/behavior6 excited/agitated7 sneak 8 mature/sophisticatedVI. 1. Became popular 2. Respect 3. Keep up 4. Lead to5. understand6. Found7. Use8. StartKey to the translation:1.It distressed me a great deal to hear the news that he had suffered repeated failure.2.He assumed an air of cheerfulness, even though he lost favor with his boss.3.Gulliver met with extraordinary adventures and saw a strange assortment of people.4.He will be furious with you if you repeat the same mistake.5.We were all greatly drawn by his frank views, humorous words and genial manner.6.After the thunderous applause died away, the Nobel Prize winner began his speech.7.He is gifted with a sort of insight and foresight, so he rarely runs with the crowd.8.I feel realities are after all very harsh, so one can hardly live up entirely to his ideals.III. 我上大学的头几天颇为难忘。
护理专业英语课后答案习题
护理专业英语课后答案习题护理专业英语课后答案习题护理专业英语课后答案习题护理专业英语课后答案Unit1 Warm-up Tasks Task 1: True or False Statements 1. T 2. T 3. F 4.F 5. T 6. F 7. F Task 2: Sentence Completion 1. primary care specialists 2. choosing to become specialists 3. alleviate those problems 4. remain a team effort 5. fewer and fewer new doctors Study Practice I. Reading Comprehension Questions 1. B 2. D 3. B 4. D 5. A II. Words to Practice 1. unique 6. sterile 2. unitary 7. established 3. adaptive 8. vary 4. expands 9. distinct from 5. prescribe 10. supervise III. Translation A. Translate the following sentences into Chinese. 1.高级临床专科护士是接受了高等教育和培训的注册护士，大部分都有护理硕士或博士学位。
她们在不同的场所工作，包括医院、疗养院、企业、私人诊所、学校以及社区中心。
有些高级临床专科护士自己开业，但大部分都是与医生合作开业。
许多高级临床专科护士有开具处方的权利。
2.护理的初衷是保持人们健康以及为病人提供舒适、照顾和保障。
虽然护理的总体目标历经几个世纪基本未变，但科学的进步和社会需求的变化对护理实践产生了巨大的影响。
护理逐渐发展成一门现代职业。
护理专业英语课后答案习题（3）
护理专业英语课后答案习题(3)护理专业英语课后答案Unit7Warm-up TasksTask 1: True or False Statements1. F2. F3. F4. F5. F6. F7. T Task 2: Sentence Completion1. lots of time and even some support2. the first six months of life3. before the baby is born4. 10 or 12 times5. aids in milk transferStudy & PracticeI. Reading Comprehension1. B2. B3. C4. A5. D II. Words to Practice1. manifest 6. inferiority2. cognitive 7. apathetic3. Cohesion 8. Mutilation4. somatic 9. catheter5. rationalization 10. detachment III.TranslationA. Translate the following sentences into Chinese.1. 护士应提供启发式的合理解释来应对儿童不切实际的恐惧，并进行干预，从使恐惧造成的损伤降到最小(比如可在操作中鼓励父母陪伴，或尽可能让儿童自己作决定)。
2. 治疗性游戏应该在无威胁的环境中进行,时间也应该有所保证。
指导游戏的工作人员应该接受儿童游戏中的行为,避免表示赞成或不赞成。
B. Translate the following sentences into English.1. Superficial phlebitis is a common complication of continuous intravenous injection.2. Without communication, the nurse is unable to determine whether implementation of nursing intervention is successful.3. Even in his irritability he was gentle, for his wife was pregnant.4. Please do not drink hot tea after eating fruit to avoid diarrhea.5. Contracture of muscle or scar tissues may result indistortion or deformity, especially in joints of the body. IV. Audio TasksTask 1: Short-answer Questions1. Develop immunity to certain diseases.2. Five DTP shots.3. Since the polio vaccine became available in 1955.4. For children between 12 and 15 months. Task 2: Spot Dictation1. confusing2. immunity3. temporary4. regarding5. combined6. dreaded7. administered8. series9. boosters护理专业英语课后答案Unit8Warm-up TasksTask 1: True or False Statements1. F2. T3. T4. T5. F6. F7. F Task 2: Sentence Completion1. ten million American baby boomers2. fifty-one years old3. Living longer4. almost twice more likely5. the life of a caregiverStudy & PracticeI. Reading Comprehension Questions1. B2. C3. A4. C5. C II. Words to Practice1. diverse 6. competencies2. acknowledges 7. efficacious3. alert 8. compliance4. demented 9. diagnosing5. outlived10. monitoring III. TranslationA. Translate the following sentences into Chinese.1. 护士还必须熟悉高龄老人的特点。
专业英语课后习题答案
perpetuity: pv = c/r
growing perpetuity: pv = c/(r-g)
annuity: pv = (c/r) [1-1/(1+r)t]
growing annuity: pv = [c/(r-g)] [1-((1+g) / (1+r))t ]
concept questions - chapter 2
? what is the balance-sheet equation?
assets = liabilities + stockholders equity
? what three things should be kept in mind when looking at a balance sheet? accounting liquidity, debt vs. equity, and value vs. cost.
flows wcalculate the value of a stock with a dividend-growth (1)zero
growth;(2)constant growth (3)differential
(1)p=div/r (2)p=div/r-g (3)p=(div t+1 /r-g )/ (1+r))t
专业英语课后习题答案
【篇一：专业英语课后答案】
?what are the three basic questions of corporate finance?
a. investment decision (capital budgeting): what long-term investment strategy should a firm adopt?
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1.two-terminal element 二端口元件2.associated reference direction 关联参考方向3.Ohm’s Law 欧姆定律4.electric field 电场5.displacement current 转移电流6.short circuit 短路7.magnetic field 磁场8.conduction current 传导电流1.capacitance2.capacitor3.resistance4.resistor5.Inductance6.InductorWe can make two important observations here.在此，我们可以得到两条重要的结论：第一，如果电流是常数，理想电感器的端电压为0，这样电感器在恒量或直流中可以当作短路；第二，在电感器中电流不能瞬时变化，也就是说，在0时间内电流不能以有限量改变。
21.能量转换energy conversion2.正极positive terminal3串联电路series circuit4.电路化简方法circuit simplification technique5.电路分析方法circuit analysis technique6.阻性电路resistive circuit7.戴维南和诺顿等效电路Thevenin and Norton Equivalent Circuit8.节点电压法node-voltage method9.网孔电流法mesh-current method10.参考节点reference nodeWe can use those approaches for all circuits,对于所有的电路都可以使用这些方法，但是当电路结构更复杂、引入更多元件的时候，这种直接求解的方法很快就变得麻烦了。
此时，可以使用两种常规的分析方法。
31. amplify current 放大电流2. electronic component 电子元器件3. complex circuit 复杂电路4. vacuum tube 真空管5. hand-held calculator便携式计算机6. integrated circuit chip集成电路芯片7. semiconductor material 半导体材料8. microprocessor 微处理器Bardeen和Brattain认为问题在于液体，所以他们用本质是锗锈的氧化锗来代替液体。
Gibney准备了一块特殊的锗片，锗片的一面上有一层绿色的氧化层。
12月12日Brattain开始插入接触点。
1. direct-coupled 直接耦合2. operational amplifier 运算放大器3. linear amplifier 线性放大器4. common mode rejection共模抑制5. negative feedback 负反馈6. zero output impedance 零阻抗输出7. buffer 缓冲器8. differential amplifier微分放大器理想反馈放大器的信号流程图如图4.3所示。
输入信号xi和输出信号xo可以是相电压，或者是相电流，或者一个是相电压，一个是相电流。
如图所示，按照反馈结构的特殊类型决定它们的定义。
图中的箭头表示在理想系统中，从输入到输出的正向传输通过基本的放大器，而反向传输通过反馈网络。
61.电导性electrical conductivity2.磷化铟indium phosphide3.自由电子波free electron waves4.异质结hetero-junction5.静电势electrostatic potential6.半导体器件semiconductor device7.导带conduction band8.价带valence band9.发光二极管led10. 离散量子态discrete quantum state1. impurity dopant 杂质掺杂2. semiconductor device 半导体材料3. N-type semiconductor N型半导体4. band gap 带隙5. covalent bond 共价键6. at room temperature 在温室下The main reason semiconductor materials are so useful is that the behavior of半导体材料如此有用的主要原因是由于半导体可以通过掺杂的方式改变其特性。
通过曝光、加压和加热的方式，产生的电场可以控制半导体的导电性，因此，半导体可以制作传感器。
半导体的导电性取决于自由电子和空穴，也就是电荷载流子。
81. high-performance 高性能2. programmable and erasable read only memory 可编程可擦除只读存储器3. embedded control application 嵌入式控制应用4. 16-bit timer/counter 16位定时器/计数器5. a full duplex serial port 全双工串行口6. Idle Mode 空闲模式7. Power-down Mode 掉电模式8. high impedance input 高阻抗输入9. address/data bus 地址/数据总线10. external program memory 外部程序存储器1. 输出缓存器output buffer2. 特殊功能寄存器special function register3. 控制信号control signal4. 写脉冲write strobe5. 中央处理单元CPU6. 编程校验program verification7. 高地址字节high-order address byte8. 外部中断external interrupt9. 串行输入口serial input port10. 片内振荡器on-chip oscillatorThe Idle mode stops the CPU while allowing the SRAM,空闲模式在停止CPU的同时，允许SRAM、T/C、SPI端口以及中断系统继续工作；掉电模式时，保存寄存器的内容而冻结晶体振荡器，同时除了下一个中断和硬件复位信号到来之前所有芯片功能都停止工作；在省电模式时，异步定时器继续运行，允许用户保持一个时间基准，而其余功能模块处于休眠状态；ADC噪声抑制模式时，除了异步定时器与ADC以外，中止CPU和所有I/O模块的功能，以使ADC转换时的开关噪声最小；待机模式时，只有晶振或谐振振荡器运行，其余功能模块处于休眠状态，这使其具有快速启动能力的同时保持低功耗。
101. 物理量physical quantity2. 水银温度计mercury thermometer3. 性能测试measured property4. 系统误差systematic errors5. 随机误差random errors6. 信号处理signal processing7. 有效数字significant digit8. 扫描隧道探测器scanning tunneling probeA radar system that uses electromagnetic waves to identify the range,雷达系统有一个发射机，它发射无线电波或（目前更经常使用的）微波，通过目标反射，被接收器检测，接收器和发射器在同一个位置。
尽管返回信号通常很微弱，但是信号能被放大。
这能使雷达在其他的发射范围检测目标，如声音或者可见光，因为太弱而不能被检测。
111. electronic product 电子产品2. semiconductor technology 半导体技术3. place and route 布局和布线4. logic simulation 逻辑仿真5. high-level design language 高级设计语言6. hardware description language 硬件描述语言7. front-end前端8. library of component 器件库1. CAD computer-aided design计算机辅助设计2. CAM computer-aided manufacturing计算机辅助制造3. IEEE Institute of Electrical and Electronics Engineers(美国)电气和电子工程师学会4. VLSI Very Large Scale Integrated 超大规模集成5. FPGA Field Programmable Gate Array 现场可编程门阵列6. CPLD Complex Programmable Logic Device 复杂可编程逻辑器件7.CAE computer-aided engineering计算机辅助工程8. MOSIS Metal Oxide Semiconductor Implementation Service金属氧化物半导体实施服务9. Very High Speed Integrated Circuit Hardware Description Language 超高速集成电路硬件描述语言10. P&R Place & Route Cadence 布局布线Cadence Design Systems公司成立于八十年代中期，专门从事物理I C设计。
Synopsys公司成立于大约同一时间内，专门从事逻辑综合。
两者都已成长为最大的EDA工具全线供应商。
Cadence公司是一家大型的（目前最大的）提供电子设计技术和工程服务的供应商。
公司的主要产品是用于芯片和印刷电路板设计的软件。
Synopsys公司是当今领先的提供电子设计自动化（EDA）软件和服务的供应商，产品主要用于全球半导体行业及电子工业的复杂集成电路（IC）、现场可编程门阵列（FPGA）和片上系统（SoC）的设计。
121. Timer 定时器2. on-delay 通电延时3. off-delay 断电延时4. counter 计数器5. relay 继电器6. registe 寄存器7. transistor 晶体管8. power-up供电PLC（可编程逻辑控制器）是一种用来替代机器控制的必要的顺序继电电路装置。