试卷8及参考答案
大学英语六级仔细阅读专项强化真题试卷8(题后含答案及解析)

大学英语六级仔细阅读专项强化真题试卷8(题后含答案及解析) 题型有:1.We live today indebted to McCardell, Cashin, Hawes, Wilkins, and Maxwell, and other women who liberated American fashion from the confines of Parisian design. Independence came in tying, wrapping, storing, harmonizing, and rationalizing that wardrobe. These designers established the modern dress code, letting playsuits and other activewear outfits suffice for casual clothing, allowing pants to enter the wardrobe, and prizing rationalism and versatility in dress, in contradiction to dressing for an occasion or allotment of the day. Fashion in America was logical and answerable to the will of the women who wore it. Implicitly or explicitly, American fashion addressed a democracy, whereas traditional Paris-based fashion was prescriptive and imposed on women, willing or not. In an earlier time, American fashion had also followed the dictates of Paris, or even copied and pirated specific French designs. Designer sportswear was not modeled on that of Europe, as “modern art” would later be; it was genuinely invented and developed in America. Its designers were not high-end with supplementary lines. The design objective and the business commitment were to sportswear, and the distinctive traits were problem-solving ingenuity and realistic lifestyle applications. Ease of care was most important; summer dresses and outfits, in particular, were chiefly cotton, readily capable of being washed and pressed at home. Clothing was simple, practical, and accessible, as the modern woman depended on no personal maid to dress her. American designers prized resourcefulness and the freedom of the women who wore the clothing. Many have argued that the women designers of this time were able to project their own clothing values into a new style. Of course, much of this argument in the 1930s -40s was advanced because there was little or no experience in justifying apparel (服装) on the basis of utility. If Paris was cast aside, the tradition of beauty was also to some degree slighted. Designer sportswear would have to be verified by a standard other than that of pure beauty; the emulation of a designer’s life in designer sportswear was a crude version of this relationship. The consumer was ultimately to be mentioned as well, especially by the likes of Dorothy Shaver, who could point to the sales figures at Lord & Taylor. Could utility alone justify the new ideas of the American designers? Fashion is often regarded as a pursuit of beauty, and some cherished fashion’s trivial relationship to the fine arts. What the designers of American sportswear proved was that fashion is a genuine design art, answering to the demanding needs of service. Of course these practical, insightful designers have determined the course of late twentieth-century fashion. They were the pioneers of gender equity, in their useful, adaptable clothing, which was both made for the masses and capable of self-expression.1.What contribution did the women designers make to American fashion?A.They made some improvements on the traditional Parisian design.B.They formulated a dress code with distinctive American features.C.They came up with a brandnew set of design procedures.D.They made originality a top priority in their fashion design.正确答案:B解析:细节题。
湖北专升本(英语)模拟试卷8(题后含答案及解析)

湖北专升本(英语)模拟试卷8(题后含答案及解析)题型有:1. V ocabulary and Structure 2. Reading Comprehension 3. Cloze 5. Translation 6. WritingV ocabulary and Structure1.One of the requirements for a fire is that the material ( ) to its burning temperature.A.is heatedB.will be heatedC.be heatedD.would be heated正确答案:C2.I have to ( ) my expenditure to my income.A.transferB.adjustC.directD.add正确答案:B3.If he had been in better health, he ( ) , more books.A.can writeB.could have writtenC.could writeD.have written正确答案:B4.With the development of industry, this region will surely ( ).A.developB.profitC.succeedD.thrive正确答案:D5.I’m going to spend the winter vacation in Shanghai, ( ) I have relatives.A.whichB.neverthelessC.whereD.when正确答案:C6.The new campus is ( ) as the old one.A.twice as bigB.as twice bigC.twice bigD.big as twice正确答案:A7.If ( )to speak, he has no problem expressing himself. A.askedB.askingC.askD.to be asked正确答案:A8.Mum is getting old, so her memory is not very ( ) these days. A.trueB.forgettableC.reliableD.credit正确答案:C9.Which door does this key ( )to?A.setB.fitC.becomeD.belong正确答案:D10.Much ( ) my regret, I am unable to accept your kind invitation. A.toB.atC.withD.by正确答案:A11.It ought to be you ( )me that sign the letter.A.butB.in spite ofC.ratherD.rather than正确答案:D12.Literature must consist of words, ( ) music must consist of sounds.A.even thoughB.so thatC.just asD.ever since正确答案:C13.If the building project ( ) by the end of this month is delayed, the construction company will be fined.A.being completedB.is completedC.to be completedD.completed正确答案:C14.I prefer walking ( ).A.to driveB.to drivingC.than driveD.than driving正确答案:B15.The committee ( ) a conclusion only after days of discussion.A.achievedB.reachedC.arrivedD.completed正确答案:B16.Asia is ( ) among the seven continents.A.largestB.the largestC.largerD.the larger正确答案:B17.You ( ) me because I didn’t say that.A.must understandB.must be understandingC.must have understoodD.had to misunderstand正确答案:C18.Generally speaking, nodding your head is ( ) to saying yes.A.contraryB.equivalentC.secondaryD.relevant正确答案:B19.I have been to the West Lake three times ( ) 1970.A.sinceB.untilC.fromD.after正确答案:A20.( )gathering and storing information, the computer can also solve complicated problems.A.Not onlyB.UnlessC.ExceptD.Besides正确答案:D21.Seldom ( ) in such a rude way.A.we have been treatedB.have we been treatedC.we have treatedD.have we treated正确答案:B22.( ),that step is not safe!A.Look aroundB.Look upC.Look outD.Look down正确答案:C23.He went on to say that it was as important to respect others as ( ) by others. A.to be respectedB.to respectC.being respectedD.respected正确答案:A24.I saw a traffic ( ) this morning.A.eventB.conflictC.damageD.accident正确答案:D25.( )you ought to do is to see a doctor.A.HowB.WhatC.WhichD.That正确答案:B26.Every means ( ) but without much result.A.have been triedB.has been triedC.have triedD.has tried正确答案:B27.Finding it difficult to ( ) to the climate in the city, he decided to move to thenorth.A.fitB.adoptC.suitD.adapt正确答案:D28.We must begin testing this instrument, no matter ( ) difficult it is.A.howeverB.howC.whateverD.what正确答案:B29.He climbed up into the tree and picked all the fruit ( ) reach.A.withinB.beyondC.offD.inside正确答案:A30.The man ( ) was stolen called the police.A.his walletB.the wallet of hisC.whose walletD.the wallet of whom正确答案:C31.Those opinions are now out of ( ).A.orderB.formC.moodD.fashion正确答案:D32.Neither Mary nor her sister ( ) to the party.A.goB.are goingC.have goneD.is going正确答案:D33.Any student ( ) in swimming can apply for membership. A.having a keen interestB.with a keen interestingC.who is keenly interestingD.has a keen interest正确答案:A34.Just because he failed once, it does not ( ) that he will fail every time. A.followB.happenC.appearD.seem正确答案:A35.He plays not only the piano, ( )the violin.A.and alsoB.but alsoC.but as well asD.but as well正确答案:B36.The population of the world is growing at a dangerous ( ).A.stepB.measureC.rateD.progress正确答案:C37.( ) him do this job by himself ?A.Why don’t letB.Why not lettingC.Why not letD.Why you not to let正确答案:C38.He speaks English ( ) better than I.A.veryB.muchC.tooD.so正确答案:B39.There can be no doubt ( ) someone had visited the house before they arrived.A.whyB.whetherC.howD.that正确答案:D40.He grew more and more absorbed in his work, ( ) he almost forgot his meals.A.that to such an extentB.to an extent such thatC.to such an extentD.such that to an extent正确答案:CReading ComprehensionProcrastination (犹豫不决) is a disease of the mind. A scientific study in recent years has shown that it is a close relative of sadness and attention disorder; that procrastinators tend to be the result of low self-confidence and are likely to experience anxiety. The research has shown, what is more, that the illness has become quite common. Susan Robert, a behavioral psychologist who has written a book called Living With Procrastination, says that about a quarter of the adult population of the United States and Canada is reported to have serious problems with procrastination. “when we say ‘serious’we mean people for whom procrastination causes great discomfort and suffering. We’ve found that such people are more troubled by daily life than others, that possibility of anxiety is much higher among them than in the rest of the population.”In a society driven by achievement, it is little wonder that not being able to work at full steam will bring people sadness. Surely, in the land of opportunity, this anxiety has produced an industry of experts offering solutions. Many books and specialist solutions have appeared. In exchange for $ 19.95, Dr. Jerome Murray will send out an audio-cassette called “Protect yourfuture from the thief of procrastination.” Dr. Murray promises that if you follow his step-by-step rules you will be empowered to “turn self-defeat into self-realization”. “Since the start of the 1990s, procrastination has been taken more and more seriously,” said Dr. Roberts, who has been treating patients troubled by the condition for more than 20 years.” It is now recognized as a true mental health problem and is being seen more as a psychological problem and less as a moral issue.41.What is the main topic of this passage?A.Don’t hesitate to give up smoking.B.Don’t regard depression as not important.C.Delay can be a sign of illness.D.Don’t work too hard to stay healthy.正确答案:C42.Which statement is NOT true according to the passage?A.Procrastination is a disease of the mind.B.Procrastination is likely to cause a great discomfort and suffering.C.Procrastination is not considered as a psychological problem but moral issue.D.Dr. Jerome Murray provides some ways to get rid of procrastination.正确答案:C43.How does the author look at procrastination?A.It is something like running.B.It is a disease of mind.C.It is not a permitted act.D.It is not full of stress.正确答案:B44.These are the signs of procrastination except ( ).A.discomfortB.sufferingC.pleasureD.sadness正确答案:C45.What’s the main idea of Dr. Murray’s cassette “Protect your future from the thief of procrastination” ?A.Turn defeat to self-realization.B.Turn depression into enthusiasm.C.Procrastination has been taken more and more seriously.D.Turn self-defeat into self-realization.正确答案:DParrots are becoming one of the most popular pets in America for good reasons. The parrot is an extraordinary bird that can be taught to talk, can be easily cared for, and can create a lively atmosphere anywhere. With the help of an energetic parrot owner, a parrot can develop an enormous vocabulary. In addition, a parrot can be trained to say “Pretty boy” or “Polly wants a cracker, “and it also can learn to whistle or sing. No matter what an owner decides to teach a bird, training a parrot takes much patience, but the reward is a stream of chatter. Another reason for the parrot’s popularity is that this pet does not require much care. For example, even a spoiled parrot does not need a house-sitter for the purpose of daily walks and daily feeding. In fact, a parrot will overeat. Still another advantage of owning a parrot is its inexpensive food, including seeds, nuts, corn, and grain-along with an apple, banana, or carrot. Perhaps the most likely reason the parrot is becoming such a well-liked pet is that it is a combination of tameness and wildness. Because the parrot can live in almost any environment, it makes a fine, tame companion for many people. In addition, because it can be easily trained, it is a delightful performer. At the same time, its colorful feathers give it an air of the mystery of the parrot’s native home, the jungle. Thus, the parrot, once a highly valued gift presented to kings and noble families, is now appreciated by a growing number of people.46.A parrot can be trained to do all the following but ( ).A.talkB.help its ownerC.singD.create a lively atmosphere正确答案:B47.Which of the following is NOT a reason for the easy raising of the parrot?A.It eats very little.B.Its food is inexpensive.C.It does not need a house-sitter.D.It does not require daily walks as dogs do正确答案:A48.The word “tameness” in the passage means ( ).A.the quality of being brave or unafraidB.the quality of being kind or warm-heartedC.the quality of being uncontrolled or fierceD.the quality of being gentle or trained正确答案:D49.The word “jungle” probably means ( ).A.boundless desert with very little plant lifeB.large apartment building with pleasing surroundingsC.wild land overgrown with thick bushes and treesD.snow-covered mountain top in very cold areas正确答案:C50.The writer ( ).A.likes the parrotB.dislikes the parrotC.doesn’t care about the parrotD.values the parrot highly正确答案:AIn my long life I have seen many changes in our habits and customs and conditions in general. I think that you might be interested if I told you some of them. The world I entered at the age of eighteen when I became a medical student was a world that knew nothing of such advanced things as planes, films, radios or telephones. It was a very cheap world. Prices were stable. When I entered St. Thomas’hospital I rent a set of rooms in Vincent Square for which I paid 18 shillings a week. My landlady provided me with a very good breakfast before I went to the hospital and a dinner when T came back at half past six. I only had to pay for the breakfasts and dinners twelve shillings a week. For four-pence I lunched at St. Thomas’ on bread and butter and a glass of milk. I could be able to live very well, pay my fees, buy my necessary instruments, clothe myself, and have a lot of fun on fourteen pounds a month. And I could always pawn (当掉) my microscope for three pounds. I spent five years at St. Thomas’hospital. I was a bad student, for my heart, as you might have guessed, was not in it. I wanted, I had always wanted to be a writer, and in the evenings, after my dinner, I wrote and read. Before long, I wrote a novel called “Liza of Lambeth”, which I sent to a publisher and was accepted. It came out during my last year at the hospital and it was successful. It was of course an accident, but I didn’t know that. I felt I could afford to give up medicine and make writing my profession; so, three days after I graduated from the school of medicine, I left for Spain to write another book. I did not realize, at that time, that I was taking a great risk.51.The text is a talk given by the author when ( ) .A.he was 18B.his first novel was publishedC.he graduated from the school of medicineD.he was at an advanced age正确答案:D52.The author graduated from the school of medicine when he was ( ).A.18B.28C.23D.30正确答案:C53.“And I could always pawn my microscope for three pounds”means the author could always ( ) .A.exchange his microscope for three poundsB.borrow his microscope and pays three poundsC.have his microscope repaired with three poundsD.lend his microscope for three pounds正确答案:A54.In the sentence “I could be able to live very well, pay my fees, buy my necessary instruments, clothe myself...” , the word “clothe” means ( ).A.wear clothesB.make clothes forC.wash clothes forD.buy clothes for正确答案:D55.The author wanted to be a writer because ( ).A.he liked to take risksB.he found it easier to make a living by writingC.he was interested in writingD.he could not study medicine well正确答案:CHow often one hears children wishing they were grown-up, and old people wishing they were young again. Each age has its pleasures and its pains, and thehappiest person is the one who enjoys what each age gives him without wasting his time in useless regrets. Youth is a time when there are few tasks to make life difficult. If a child has good parents, he is fed, looked after and loved whatever he may do. It is impossible that he will ever again in his life be given so much without having to do anything in return. In addition, life is always presenting new things to the children-things that have lost their interest for older people because they are too well-known. But a child has his pains: he is not so free to do what he wishes to do; he is continually being told not to do things, or being punished for what he has done wrong. When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing about in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If, however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up for himself his own position in society.56.People can experience happiness if they ( ).A.always think of the past and regret itB.value the presentC.are no longer youngD.become old and have much experience正确答案:B57.When people were young, they used to ( ).A.be in charge of many businessesB.have few things to think about and take onC.look after their younger sisters and brothersD.face a lot of difficulties正确答案:B58.The pains of children lie in the fact that ( ).A.no one helps them make right decisionsB.they are often beaten by their parentsC.they can not be accepted and praised by othersD.they are not allowed to do what they like to do正确答案:D59.Children are usually happy because ( ).A.old people lose interest in themB.they are free to do wrongC.they are familiar with everything going on around themD.things are new to them正确答案:D60.Which of the following is NOT needed for a young man to be happy?A.Hard workB.Being free from troubleC.WealthD.Health正确答案:CClozeMore than forty thousand readers told us what they looked for in close friendships, what they expected【C1】______friends, what they were willing to give in 【C2】______, and how satisfied they were【C3】______the quality of their friendships, the【C4】______give little comfort to social critics. Friendship【C5】______to be a unique form of【C6】______ bonding. Unlike marriage or the ties that【C7】______ parents and children, it is not defined or regulated by【C8】______. Unlike other social roles that we are expected to【C9】______as citizens, employees, members of professional societies and【C10】______organization-it has its own principle, which is to promote【C11】______of warmth, trust, love, and affection【C12】______two people. The survey on friendship appeared in the March【C13】______of Psychology Today. The findings【C14】______that issues of trust and betrayal (背叛) are【C15】______to friendship. They also suggest that our readers do not【C16】______for friends only among those who are【C17】______like them, but find many【C18】______differ in race, religion, and ethnic (种族的) background. Arguably the most important【C19】______ that emerges from the data,【C20】______, is not something that we found-but what we did not.61.【C1】A.onB.ofC.toD.for正确答案:B62.【C2】A.additionB.replyC.turn D.return正确答案:D63.【C3】A.aboutB.ofC.withD.by正确答案:C64.【C4】A.results B.effects C.expectations D.consequences正确答案:A65.【C5】A.feels B.leads C.sounds D.appears正确答案:D66.【C6】A.human B.mankind C.individual D.civil正确答案:A67.【C7】A.bind B.attach C.control D.attract正确答案:A68.【C8】A.discipline B.law C.rule D.regulation正确答案:B69.【C9】A.keep B.do C.show D.play正确答案:D70.【C10】A.all B.any C.other D.those正确答案:C71.【C11】A.friendship B.interests C.feelings D.impressions 正确答案:C72.【C12】A.between B.onC.inD.for正确答案:A73.【C13】A.print B.issueC.publication D.copy正确答案:B74.【C14】A.secure B.assure C.confirm D.ensure正确答案:C75.【C15】A.neutral B.main C.nuclear D.central正确答案:D76.【C16】A.ask B.call C.appeal D.look正确答案:D77.【C17】A.most B.more C.least D.less正确答案:A78.【C18】A.people B.who C.what D.friends正确答案:B79.【C19】A.conclusionB.summaryC.decisionD.claim正确答案:A80.【C20】A.moreoverB.howeverC.stillD.yet正确答案:BTranslationSection ADirections: Translate the following English into Chinese.81.Practice should go hand in hand with theory.正确答案:实践应该与理论紧密结合。
妇产科主治医师(正常分娩)模拟试卷8(题后含答案及解析)

妇产科主治医师(正常分娩)模拟试卷8(题后含答案及解析) 题型有:1. A1型题 2. A2型题 3. A3/A4型题 4. A3/A4型题1.进入产程中的子宫收缩的特征,下列哪项是不恰当的A.收缩以子宫底部为最强烈,子宫下段收缩最弱B.宫缩具有对称性C.是不自主的节律性收缩D.子宫肌纤维在宫缩时变短变宽,间歇时松弛恢复如旧E.子宫收缩间隔越来越短,持续时间越来越长正确答案:D 涉及知识点:正常分娩2.最大加速期指宫口扩张多大A.9~10cmB.4~9cmC.3~4cmD.3~10cmE.6~10cm正确答案:B 涉及知识点:正常分娩3.先兆临产比较可靠的征象是A.假临产B.见红C.胎儿下降感D.胎动活跃E.尿中hCG明显增多正确答案:B 涉及知识点:正常分娩4.第一产程期间适宜进行肥皂水灌肠的是A.经产妇头位,宫口扩张3cm,未破膜B.初产妇头位,宫口扩张2cm,未破膜C.胎膜早破D.臀位E.有剖宫产史正确答案:B 涉及知识点:正常分娩5.关于枕左前位分娩机制,下列正确的是A.胎头矢状缝衔接于骨盆入口左斜径上B.俯屈发生在胎头到达中骨盆时C.内旋转动作完成于第一产程初D.胎头下降至阴道外口时,出现仰伸动作E.胎头娩出后,枕部向右方旋转45°,是为复位正确答案:D 涉及知识点:正常分娩6.当胎头仰伸时,胎儿双肩径进入下列何项A.骨盆入口前后径B.骨盆骶耻内径C.骨盆入口斜径D.中骨盆前后径E.中骨盆横径正确答案:C 涉及知识点:正常分娩7.枕先露临产过程,胎头下降程度的标志是A.骨盆入口平面B.坐骨棘连线C.骨盆出口平面D.阴道外口E.坐骨结节连线正确答案:B 涉及知识点:正常分娩8.测量骶耻外径的标志点是指A.耻骨联合上缘至第5腰椎棘突B.耻骨联合中点至髂后上棘联线中点上1.5cmC.耻骨联合中点至米氏菱形窝上角下1.5cmD.耻骨联合上缘中点至米氏菱形窝上角E.耻骨联合上缘中点至髂耻联线下3cm正确答案:D 涉及知识点:正常分娩9.关于第三产程时胎盘剥离征象,下列哪项是正确的A.子宫底升至脐上,子宫体变硬呈球形B.阴道有大量出血C.子宫轮廓不清,质软D.阴道口外露的脐带长度缩短E.轻压子宫下段时,外露脐带有回缩正确答案:A 涉及知识点:正常分娩10.临产后内诊,检查先露部下降程度,应以下列哪项作标记A.耻骨联合下缘B.骶岬C.坐骨结节D.坐骨棘E.骶尾关节正确答案:D 涉及知识点:正常分娩11.Apgar评分判断新生儿临床恶化的顺序是A.皮肤颜色一呼吸一反射一肌张力一心率B.皮肤颜色一反射一肌张力一呼吸一心率C.皮肤颜色一肌张力一反射一呼吸一心率D.皮肤颜色一呼吸一肌张力一反射一心率E.心率一皮肤颜色一肌张力一反射一呼吸正确答案:D 涉及知识点:正常分娩12.若宫缩应激试验监护出现频繁的晚期减速,胎心160次/min。
初二英语试卷及参考答案

初二英语试卷及参考答案初二英语试卷及参考答案做好每份试题的练习,可以帮助你强化英语知识点的记忆,提高做题能力。
以下是店铺给你推荐的初二英语试卷及答案,希望对你有帮助! 初二英语试卷听力部分(20分)I. 听句子,根据所听内容补全下面的句子。
句子读两遍。
(每小题1分,共5分)1. The boy will keep a ______ at home.2. The girl thinks many people will fly to the _______ in 200 years.3. The boy usually plays _______ on Friday afternoons.4. The girl will buy the ________ for Kitty tomorrow.5. The boy’s brother wants to be a _________ in the future.II. 听对话和问题,根据所听内容选择最佳答案。
对话读两遍。
(每小题1分,共5分)6. A. They will be shorter.B. They will be much taller.C. They will be fewer and fewer.7. A. She is an engineer.B. She is an actor.C. She is a waiter.8. A. He failed his English exam. B. He failed his Chinese exam.C. He failed his math exam.9. A. No. B. OK. C. Sorry.10. A. Long B. Short C. We don’t know.III. 听对话,根据所听内容选择最佳答案。
对话读两遍。
(每小题1分,共5分)听第1段对话,回答第11-12小题。
大学英语四级仔细阅读专项强化真题试卷8(题后含答案及解析)

大学英语四级仔细阅读专项强化真题试卷8(题后含答案及解析) 题型有:1.Aging happens to all of us, and is generally thought of as a natural part of life. It would seem silly to call such a thing a “disease.”On the other hand, scientists are increasingly learning that aging and biological age are two different things, and that the former is a key risk factor for conditions such as heart disease, cancer and many more. In that light, aging itself might be seen as something treatable, the way you would treat high blood pressure or a vitamin deficiency. Biophysicist Alex Zhavoronkov believes that aging should be considered a disease. He said that describing aging as a disease creates incentives to develop treatments. “It unties the hands of the pharmaceutical (制药的) industry so that they can begin treating the disease and not just the side effects,” he said. “Right now, people think of aging as natural and something you can’t control,” he said. “In academic circles, people take aging research as just an interest area where they can try to develop interventions. The medical community also takes aging for granted, and can do nothing about it except keep people within a certain health range. “But if aging were recognized as a disease, he said, “It would attract funding and change the way we do health care. What matters is understanding that aging is curable. ““It was always known that the body accumulates damage,” he added. “The only way to cure aging is to find ways to repair that damage. I think of it as preventive medicine for age-related conditions.”Leonard Hayflick, a professor at the University of California, San Francisco, said the idea that aging can be cured implies the human lifespan can be increased, which some researchers suggest is possible. Hayflick is not among them. “There’re many people who recover from cancer, stroke, or heart disease. But they continue to age, because aging is separate from their disease,” Hayflick said. “Even if those causes of death were eliminated, life expectancy would still not go much beyond 92 years.”1.What do people generally believe about aging?A.It should cause no alarm whatsoever.B.They just cannot do anything about it.C.It should be regarded as a kind of disease.D.They can delay it with advances in science.正确答案:B解析:推理判断题。
大学英语四级(听力)模拟试卷8(题后含答案及解析)

大学英语四级(听力)模拟试卷8(题后含答案及解析)题型有:1. W: All right, Mr. Kordell. And your phone number is 560-1287, and the fax number is 560-1288. Is that correct? M: Yes, it is.W: All right. I’ll be sure to send you the fax this afternoon. M: Okay, bye. 23. Why can’t Elaine Strong answer the phone?24. What does the man want the woman to send?25. What can we learn about the man?9.A.She’s in a meeting.B.She’s out of the office.C.She’s talking with another customer.D.She’s spending her holiday.正确答案:B解析:对话中女士说她此刻不在办公室,故选B。
本题具有鲜明but题的特征。
预读选项知本题问“她”在干什么,如此便容易听到考点所在内容。
知识模块:听力10.A.A list of software products.B.A picture of the newest computers,C.Information on after-sales service.D.An introduction about the products.正确答案:C解析:男士说,Strong女士给他寄了一些资料,但“没有任何有关售后服务的信息”,故C正确。
解题关键是听辨对话中提到的项目,并注意区分,A、B、D为并列出现的项目,均不可作为答案。
知识模块:听力11.A.His name is Jack Cordel, and his phone number is 560-1288.B.His name is Jack Kordell and his fax number is 560-1287.C.His name is Jack Cordel and his fax number is 560-1288.D.His name is Jack Kordell and his phone number is 560-1287.正确答案:D解析:对话中男士自报家门,说自己名叫Jack Kordell,电话560一1287,传真560-1288。
执业兽医资格考试临床科目(兽医产科学)模拟试卷8(题后含答案及解析)

执业兽医资格考试临床科目(兽医产科学)模拟试卷8(题后含答案及解析)题型有:1. A1型题 2. A2型题 3. A3/A4型题1.皮下埋植可使绵羊繁殖季节提早6~7周,并能缩短乏情期的激素是( )。
A.褪黑素B.黄体酮C.催产素D.人绒毛膜促性腺激素E.雄激素正确答案:A 涉及知识点:兽医产科学2.家畜出现发情表现而且时间比较长,直肠检查卵巢上有较成熟的卵泡,但迟迟不排卵,应及时补充的激素是( )。
A.前列腺素B.雌激素C.促卵泡素D.促黄体素E.孕马血清促性腺激素正确答案:D 涉及知识点:兽医产科学3.催产素可治疗的动物产科疾病是( )。
A.产后缺钙B.胎衣不下C.产后瘫痪D.隐性乳腺炎E.雄性动物不育正确答案:B 涉及知识点:兽医产科学4.母马发情持续的时间为( )。
A.5~10dB.11~15dC.16~20dD.21~25dE.26~30d正确答案:A 涉及知识点:兽医产科学5.精子与卵子相遇,精子穿过放射冠、透明带、卵黄膜并激活卵子,使雌原核和雄原核融合成新的合子过程称为( )。
A.受精前的准备B.妊娠建立C.妊娠识别D.受精E.授精正确答案:D 涉及知识点:兽医产科学6.为提高人工授精的受胎率,牛的精液质量应为( )。
A.密0.5、中0.5~0.6、稀0.7以上B.密0.6、中0.7、稀0.8以上C.密0.3、中0.4、稀0.5以上D.密0.1、中0.2、稀0.4以上E.密0.4、中0.5、稀0.6以上正确答案:C 涉及知识点:兽医产科学7.正常饲养条件下的黑白花奶牛适龄配种月龄是( )。
A.15~16月龄B.12-~14月龄C.16~22月龄D.21~24月龄E.24~26月龄正确答案:C 涉及知识点:兽医产科学8.通过测定孕酮含量,诊断牛早期妊娠的最佳时期是( )。
A.配种后24dB.配种后35dC.配种后40dD.配种后72dE.配种后100d正确答案:A 涉及知识点:兽医产科学9.奶牛的怀孕期时间为( )。
数据结构与算法 模拟试卷七、八及参考答案

模拟试卷七一、单项选择题(在每小题的四个备选答案中,选出一个正确的答案,并将其号码填在题干后的括号内。
每小题1分,共10分)1.假设执行语句S的时间为O(1),则执行下列程序段for(i=1;i<=n;i++)for(j=i;j<=n;j++)S;的时间为( )A)O(n)B)O(n2)C)O(n*i)D)O(n+i)2.设栈最大长度为3,入栈序列为1,2,3,4,5,6,则不可能的出栈序列是()。
A)1,2,3,4,5,6 B)2,1,3,4,5,6C)3,4,2,1,5,6 D)4,3,2,1,5,63.设单链表的结点结构为(data,next),已知指针q所指结点是指针p所指结点的直接前驱,如在*q与*p之间插入结点*s,则应执行的操作为()。
A)s->next=p->next; p->next=s; B)q->next=s; s->next=p;C)p->next=s-next; s->next=p; D)p->next=s; s-next=q;4.串S='ABC DEF'的串长为()。
A)3 B)4C)7 D)85.下面二叉树按()遍历得到的序列是FEDBIHGCA。
A)先序B)中序C)后序D)层次6.用Floyd算法求每一对顶点之间的最短路径的时间复杂度为()。
A)O(n) B)O(n2)C)O(n3) D)O(nlogn)7.具有n个顶点的无向图,它可能具有的边数的最大值为()。
A)(n2+n)/2 B)n2C)(n2-n)/2 D)n8.二分查找法要求被查找的表是()。
A)顺序表B)链接表C)顺序表且是按值递增或递减次序排列D)不受上述的任何限制9.在一待散列存储的线性表(18,25,63,50,42,32,90),若选用h(k)=k % 7作为散列函数,则与元素18冲突的元素有( )个。
A)0 B)1C)2 D)310.在下列排序算法中,不稳定的是()。
卫生法规(综合)模拟试卷8(题后含答案及解析)

卫生法规(综合)模拟试卷8(题后含答案及解析)题型有:1. B1型题 2. A1型题A.民事责任B.刑事责任C.财产关系D.财产赔偿E.行政责任1.由国家授权的企事业单位领导机关追究的是正确答案:E 涉及知识点:卫生法规2.恢复被违法行为侵害的财产权利是实现正确答案:C 涉及知识点:卫生法规A.疫情通报B.疫情报告C.疫情措施D.疫区E.疫点3.病原体从传染源向周围播散的范围较小或者单个疫源地是正确答案:E 涉及知识点:卫生法规4.传染病在人群中爆发、流行,其病原体向周同播散时所能波及的地区是正确答案:D 涉及知识点:卫生法规A.中医药专业技术职务任职资格评审B.与中医药有关的评审或者鉴定活动C.获得定点资格的中医医疗机构D.非营利性中医医疗机构E.中医药人员培训规划5.成立专门的中医药评审组织或者由中医药专家参加评审的是正确答案:A 涉及知识点:卫生法规6.应当体现中医药特色,遵循中医药自身的发展规律的是正确答案:B 涉及知识点:卫生法规7.下列卫生法规范性文件中属于卫生法律的是A.《中华人民共和国药品管理法实施办法》B.《中华人民共和国执业医师法》C.《医疗机构管理条例》D.《医疗事故处理条例》E.《麻醉药品管理办法》正确答案:B 涉及知识点:卫生法规8.下列哪部法律属于卫生法范畴A.《中华人民共和国商标法》B.《中华人民共和国专利法》C.《中华人民共和国著作权法》D.《中华人民共和国合同法》E.《中华人民共和国药品管理法》正确答案:E解析:卫生单行法律:《母婴保健法》《执业医师法》《传染病防治法》《职业病防治法》《国境卫生检疫法》《食品安全法》《药品管理法》《献血法》《人口与计划生育法》《红十字会法》等。
知识模块:卫生法规9.对违法者追究行政责任的机关是A.一般单位领导机关B.人民法院审判机关C.刑事审判机关D.国家行政机关或企事业单位行政领导机关E.民事审判机关正确答案:D 涉及知识点:卫生法规10.国家实行医师资格考试制度,目的是评价申请医师资格者是否具备A.从事医学实践必需的基本专业知识与能力B.医学专业学历C.取得医学专业技术职务的条件D.从事医学专业教学、科研的资格E.开办医疗机构的条件正确答案:A 涉及知识点:卫生法规11.全社会应当尊重医师,医师依法履行职责时应受A.法律保护B.全社会监督C.医疗机构的保护D.卫生行政部门的保护E.群众支持正确答案:A解析:《中华人民共和国执业医师法》第三条规定:执业医师应当具备良好的职业道德和医疗执业水平,发扬人道主义精神,履行防病治病、救死扶伤、保护人民健康的神圣职责。
生物化学试卷及参考答案

生物化学卷子8 及答案一、名词解释〔每题2分,共16分〕1.呼吸链2.核酶3、逆转录4.半保存复制5、蛋白质等电点〔p I〕6、增色效应7、冈崎片段8、别构酶二、推断题〔请在你认为正确的表达前打“√〞,错误的打“×〞;每题1分,共10分〕〔〕1.酶原激活是酶蛋白构象变化的结果。
〔〕2. 胰岛素是由A、B两条肽链构成的,因而它是一种寡聚蛋白。
〔〕3.在竞争性抑制剂存在下,即使有足够的底物,酶仍不能到达其催化的最大反响速度。
〔〕4.丙酮酸脱氢酶复合物和α-酮戊二酸脱氢酶复合物催化相同类型的反响。
〔〕5.脂肪酸合成所需的碳源完全来自乙酰CoA,它可以通过酰基载体蛋白穿过线粒体内膜而进入胞浆。
〔〕6.脂肪酸合成与脂肪酸分解都是由多酶体系催化完成的。
〔〕7.生物遗传信息的流向,只能由DNA→RNA而不能由RNA→DNA。
〔〕8.每种氨基酸只有一种特定的tRNA作为转运工具。
〔〕9.RNA聚合酶通过终止因子识别终止密码结束转录。
〔〕10.解旋酶(helicase)是拓扑异构酶的一种。
三、选择题〔每题1分,共15分〕〔〕1.维生素B2是以下哪种辅酶或辅基的组成成分:A.NAD+ B.NADP+C.CoA D.TPP E.FAD〔〕2.以下哪一种维生素是辅酶A的前体:A、核黄素B、泛酸C、钴胺素D、吡哆胺〔〕3.在琥珀酸脱氢酶反响体系中参加丙二酸,K m增大,V max不变,丙二酸应当是:A.竞争性抑制剂B.非竞争性抑制剂C.非专一的不可逆抑制剂D.专一的不可逆抑制剂〔〕4.有关TCA循环的描述,错误的选项是:A.TCA循环是糖、脂肪和氨基酸彻底氧化的共同途径;B.1分子葡萄糖经糖酵解和三羧酸循环彻底氧化成CO2和H2O,同时生成32(或30)分子ATPC.α—酮戊二酸→琥珀酸包含底物水平磷酸化反响D.与糖酵解—样,三羧酸循环也可在无氧条件下进行〔〕5.以下关于丙酮酸脱氢酶复合体的表达,哪项是错逞的:A.丙酮酸脱氢酶复合体是多酶体系B.它由丙酮酸脱氢酶和二氢硫辛酰胺脱氢酶两种酶组成C.参与反响的辅酶有TPP、硫辛酸、NAD+、FAD和CoAD.化学修饰可改变丙酮酸脱氢酶复合体的活性〔〕6.三羧酸循环中有底物水平磷酸化反响的是:A.异柠檬酸→α—酮戊二酸B.α—酮戊二酸→琥珀酸C.琥珀酸→延胡索酸D.延胡索酸→苹果酸〔〕7.以下哪种酶在糖酵解和糖异生过程中都发挥作用:A.3—磷酸甘油醛脱氢酶B.丙酮酸激酶C.丙酮酸脱氢酶D.己糖激酶E.果糖—1,6—二磷酸酶〔〕8.如果一个完全具有放射性的双链DNA分子在无放射性标记溶液中经过两轮复制,产生的四个DNA分子的放射性情况是:A、其中一半没有放射性B、都有放射性C、半数分子的两条链都有放射性D、一个分子的两条链都有放射性E、四个分子都不含放射性〔〕9.三羧酸循环中催化琥珀酸形成延胡羧酸的琥珀酸脱氢酶的辅助因子是:A、NAD+B、CoAC、FADD、TPPE、NADP+〔〕10.氰化物中毒是由于抑制了哪种细胞色素A.CytaB.Cyta3C.CytcD.Cytaa3E.Cytc1〔〕11.DNA正链(有意义链)有一段序列为:5’—ACTGTCAG—3’,转录后RNA产物中相应的碱基序列是:A.5’—CUGACAGU—3“ B.5’—UGACAGUC—3’C.5’—ACUGUCAG—3’ D.5’—GACU UUTA—3’〔〕12.醋酸纤维薄膜电泳时,以下说法不正确的一项为哪一项A、点样前醋酸纤维薄膜必须用纯水浸泡肯定的时间,使处于湿润状态B、以血清为样品,pH8.6条件下,点样的一端应置于电泳槽的阴极一端C、电泳过程中保持恒定的电流可使蛋白质组分有效别离D、点样量太多时,蛋白质组分相互粘联,谱带会严峻拖尾,结果不易分析〔〕13、下面那种试剂可与DNA发生显色反响,用于DNA的定量测定:A. 考马斯亮蓝试剂B. 二苯胺试剂C. 地衣酚试剂D. DNS试剂〔〕14.DNA复性的重要标志是:A、溶化度降低B、溶液粘度降低C、紫外汲取增大D、紫外汲取降低〔〕15、已知某米氏酶的K m=0.05mol/L,在以下哪个底物浓度下反响速度可到达最大反响速度的90%A.0.05 mol/L B.0.45 mol/LC.0.9 mol/L D.4.5 mol/L四、填空题(1-9题每空1分,第10题,每空0.5分,共35分)1.蛋白质和核酸对紫外光均有汲取。
山东省专升本(计算机文化基础)模拟试卷8(题后含答案及解析)

山东省专升本(计算机文化基础)模拟试卷8(题后含答案及解析) 题型有:1. 填空题 2. 单选题 3. 多选题 4. 判断题填空题每空2分,共20分。
请将每一个空的正确答案写在答题卡上。
1.为解决CPU与内存储器之间速度不匹配问题,引入了_________。
正确答案:高速缓冲存储器(或Cache)2.十六进制数17B.1转化为二进制数为_________。
正确答案:0001 0111 1011.0001B3.在SQL语句中,子句_________表示按指定字段排序。
正确答案:ORDER BY(大小写均可)4.VPN的中文含义是_________的缩写。
正确答案:虚拟专用网5.按照防火墙保护网络使用方法的不同,可将其分为三类:_________防火墙、应用层防火墙和链路层防火墙。
正确答案:网络层6.在工作簿Book1中使用三维绝对地址引用工作簿Book2的Sheet1 工作表中的第3行第5列,可表示为_________。
正确答案:[Book2]Sheet1!$E$37.C类IP地址可包含主机台数最多为_________。
正确答案:2548.如果在Excel 2010的文档中插入形状,应当使用_________选项卡。
正确答案:插入9.在Word中,如果用户选择一个矩形文本区,要用鼠标和_________键配合使用。
正确答案:Alt10.执行01010101∧11110000进制逻辑与运算,其运算结果是_________。
正确答案:0101000011._________是演示文稿韵颜色搭配、字体设置及特效命令的集合,可简化演示文稿的创作过程。
正确答案:主题12.地址码(地址总线)长度为二进制12位时,其寻址范围是_________KB。
正确答案:413.Excel 2010中,某公式=“AB”&“CD”的返回值为_________。
正确答案:ABCD14.Excel 2010中,_________图形包括图形列表、流程图及更为复杂的图形,可以更为直观的方式同用户交流信息。
笔译三级实务(综合)模拟试卷8(题后含答案及解析)

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涉及知识点:英译汉2.Place routines like cycling, swimming, or any other substitute activities for the evening and add a few minutes or laps each consecutive day and challenge your body’s limits.正确答案:把每日的常规项目,诸如骑自行车、游泳或其他替代项目,都安排在傍晚,并且每天增加几分钟锻炼时间或增加几圈训练圈数,挑战身体的极限。
涉及知识点:英译汉3.You enjoy a variety of benefits if you do your aerobic workout on a regular basis, even if the intensity is low or short in duration.正确答案:如果你有规律地进行有氧锻炼,即使强度低,持续时间短,你都会享有各种各样的好处。
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A、甲大于乙B、甲小于乙C、两者相等D、无法判定2、在家庭劳动力供给中,引起劳动力参与率上升的因素是():A、家庭收入的增加B、家务劳动时间的增加C、教育培训投入的增加D、制度劳动时间的下降3、人力资源显性稀缺是指影响组织目标实现的()不足:A、劳动者头脑中的知识B、劳动者创造力C、关键性人力资源供给D、劳动者人力配置4、下列关于无差异曲线的说法错误的是():A、不同无差异曲线上的点的效用不同。
B、无差异曲线是一簇斜率为负,凸向原点的曲线。
C、主体的偏好不同,无差异曲线的形状不同。
D、离原点越远的无差异曲线代表的效用越低;反之效用越高。
5、下列关于边际技术替代率的说法,不正确的是():A、边际技术替代率是劳动投入和资本投入相互替代的比率B、边际技术替代率数值为正C、边际技术替代率等于可变投入要素的边际产品之比D、边际技术替代率是等产量线的斜率6、引起劳动力需求量变动的根本原因是()A、工资率B、生产技术C、货币资本规模D、企业的性质7、下列关实证分析的说法错误的是():A、它坚持只有通过观察或检验获得的知识才是可信赖的和有效的。
B、它试图超脱或排斥一切价值判断的分析方法。
C、它回答“应该是什么”的问题。
D、重视事实和经济本身的内在规律。
8、下列关于由劳动要素增加所引起的总产量TP、平均产量AP、边际产量MP及其相互关系说法错误的是():A 、TP、AP、MP三条曲线都是先增后减B、当AP与MP相交时,TP达到最大值C、当MP达到最大值时,TP曲线出现拐点D、AP与MP相交后,AP大于MP9、对于需求弹性大、供给弹性相对较小的商品,对该商品课税,则会导致劳动力需求():A、下降B、上升C、不变D、不确定10、从总供给角度来分析通货膨胀成因的通货膨胀类型是()A、需求拉上型通货膨胀B、成本推进型通货膨胀C、结构调整型通货膨胀D、惯性通货膨胀11、一般培训的成本通常由()来支付。
国家开放大学2023-2024学年数据库应用技术模拟试卷及答案解析8(2024年)

销售日期:日期型。 销售价格:整型。 .房屋租赁 有如下房屋、租客和租赁三张表,各表结构如下: “房屋”表结构: 房屋号:普通编码定长字符类型,长度为10,主键。 房主姓名:统一编码可变长字符类型,长度为10,非空。 居室数:整型,取值范围为1-4。 地址:统一编码可变长字符类型,长度为30。 月租金:整型。 “租客”表结构: 租客号:普通编码定长字符类型,长度为18,主键。 租客名:统一编码可变长字符类型,长度为10,非空。 联系电话:普通编码定长字符类型,长度为11。
单价:整型。 “生产厂家”表结构: 厂家编号:普通编码定长字符类型,长度为20,主键。厂家名:普通编码可变长字符类型,长度为30,非空。厂 家地址:统一字符编码可变长字符类型,长度为40。 “生产”表结构: 商品号:普通编码定长字符类型,长度为10,引用商品表的外键。 厂家编号:普通编码定长字符类型,长度为20,引用生产厂家表的外键。 生产日期:日期类型。 生产数量:整型。 主键:(商品号,厂家编号,生产日期)。 .图书出版 设有描述图书出版情况的如下三张表,各表结构如下: “图书”表结构: 书号:普通编码定长字符类型,长度为20,主键。 书名:普通编码可变长字符类型,长度为30,非空。
地址:统一字符编码可变长字符类型,长度为30。 “销售”表结构: 书号:普通编码定长字符类型,长度为20,引用图书表的外键。 书店编号:普通编码定长字符类型,长度为20,引用书店表的外键。 销售时间:日期时间类型。 销售数量:整型。 主键:(书号,书店编号,销售时间)。 2.健身项目 有如下项目、会员和健身三张表,各表结构如下: “项目”表结构: 项目号:普通编码定长字符类型,长度为10,主键。 项目名:统一编码可变长字符类型,长度为10,非空。 类别:普通编码定长字符类型,长度为6,取值:瑜伽、跑步、健美操。费用:整型,默认值100。 “会员”表结构:
广东专插本(英语)模拟试卷8(题后含答案及解析)

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本题考查词义辨析。
cause:原因,起因;confusion:混乱,困惑;reason:理由,缘故;puzzle:难题,迷惑。
2.It was Alice and her husband who sent the old man to the hospital, ______?A.weren’t theyB.didn’t theyC.wasn’t itD.wasn’t he正确答案:C解析:句意:是爱丽丝和她丈夫把这个老人送到医院的,对吧?本题考查反意疑问句的用法。
本句是个强调句型,其后的反意疑问部分应该跟句中的it is/was一致。
故答案为C。
3.______of you left all those magazines strewn (撒落) on the floor like that?A.WhichB.WhoC.WhatD.Whoever正确答案:A解析:句意:你们谁把这些杂志那样撒在地上?本题考查疑问词的用法。
which 在这里指的是你们当中的“哪一个”,其他选项不符合题意。
4.______can this be that you are not aware of it happening.A.Such gradual a processB.Such a gradual processC.So gradual a processD.So a gradual process正确答案:B解析:句意:这个过程是如此的慢以至于你都不知道它发生了。
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A.商品定购B.支付方式C.旅游节目的预订D.网站的浏览量正确答案:C10.企业网站的域名中一般包括A.comB.orgC.cnD.edu正确答案:A11.数据信息的完整性可以从( )方面来分析。
A.数据的压缩和传输B.数据传输介质和误码率C.信息的传输和存储D.信息的存储和压缩技术正确答案:C12.大部分企业在电子商务网站上的投入很难有产出,企业发展电子商务的最大的难点是在方面。
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A.生物体中含量最丰富的元素是H、O、C、N四种元素,约占细胞重量的99%B.生物体中含量最丰富的元素是H、O、C、S四种元素,约占细胞重量的99%C.生物体中含量最丰富的元素是H、O、P、S四种元素,约占细胞重量的99%D.生物体中含量最丰富的元素是Mn、Fe、P、s四种元素,约占细胞重量的99%E.生物体中含量最丰富的元素是O、Mn、P、S四种元素,约占细胞重量的99%正确答案:A2.生物大分子的高级构象是靠非共价键来稳定,非共价键有( )。
A.二硫键、氢键、范德华引力、疏水键、离子键B.氢键、范德华引力、疏水键、离子键C.氢键、范德华引力、疏水键、离子键、配位键D.氢键、范德华引力、疏水键、离子键、共价键E.二硫键、碳碳单键、碳碳双键、碳氮单键正确答案:B3.关于蛋白质的叙述,错误的是( )。
A.蛋白质是生物体内除水分外含量最高的化合物B.蛋白蛋不仅是生命的结构成分,也是生命功能的体现者C.生物生长、繁殖、遗传和变异都和蛋白质有关D.蛋白质是生命的结构成分,在细胞内含量最高,它因此只和细胞支撑和肌肉运动功能有关E.酶化学本质是蛋白质,它是种类最多的一类蛋白质正确答案:D4.关于核酸的叙述,错误的是( )。
A.核酸分为脱氧核酸(DNA)和核糖核酸(RNA)两大类B.生物的遗传信息储存于DNA的核苷酸序列中C.真核细胞中DNA主要存在于细胞核中,并与组蛋白结合成染色体D.生物体DNA含量和生长环境、年龄、营养状况无关,只和种有关E.病毒DNA和RNA都具有正确答案:E5.关于生命活动中动物体的能量叙述,错误的是( )。
A.生物体能量来源于生物大分子氧化分解供能B.腺苷三磷酸(ATP)既是生物体能量直接供体,也是能量的储存方式C.生物体不能直接利用生物大分子氧化分解能量,而是通过腺苷三磷酸(ATP)作为能源“货币”供能D.除ATP外,GTP、CTP、UTP等含有高能磷酸键的化合物,统称为高能磷酸化合物E.生物体内,ATP每水解和生成一个高能磷酸键需要释放和吸收30.57kJ/mol的能量正确答案:C6.下列氨基酸溶液,不引起偏振光发生旋转的是( )。
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A.龚自珍B.纪晓岚C.黄遵宪D.李毓秀正确答案:D2.理学在清代走向衰微,清代朴学源于几位明末清初的大儒。
其中反对不求实际学问而空谈性理,强调“天下兴亡,匹夫有责”的是_______。
A.黄宗羲B.王夫之C.颜元D.顾炎武正确答案:D3.“草木皆兵”这个成语出自_____。
A.巨鹿之战B.长平之战C.淝水之战D.赤壁之战正确答案:C4.著名剧目《西厢记》是_____的作品。
A.马致远B.王实甫C.关汉卿D.汤显祖正确答案:B5.中国古代文献的“经、史、子、集”四分法开始于_____。
A.唐朝B.宋朝C.隋朝D.明朝正确答案:C6.法国人在北美建立的首个殖民地是_____。
A.魁北克B.新阿姆斯特丹C.弗吉尼亚D.纽芬兰正确答案:D7.罗马人最崇拜的神不包括_____。
A.天神朱庇特B.战神玛尔斯C.奎里努斯D.智慧神雅典娜正确答案:D8.下列_____不是意大利文艺复兴时期的代表人物。
A.但丁B.达芬奇C.薄伽丘D.拉伯雷正确答案:D9.分裂与统一是中国历史的两大现象,其中占主导倾向的追求是( )。
(中山大学2017)A.和睦B.团结C.和平D.统一正确答案:D解析:分裂与统一是中国历史上的两大现象,统一总是占主导倾向的追求。
知识模块:历史演变10.由于商品经济发达,明清时期出现了巨大的商业资本,徽商被称为新安大贾,所贩运的首先是( )。
(北京大学2016)A.盐B.粮食C.布匹D.茶叶正确答案:A解析:徽商经营物类很广,“其货无所不居”,而以盐、茶、木、典当四者为大宗。
首先是盐商,“新安多大贾,其居盐者最豪”。
徽人业盐开始于宋元,盛行于明中叶,特别是“开中折色法”实行后,徽人大肆进入两淮业盐。
知识模块:历史演变11.在中国原始文化中,被称为彩陶文化的是( )。
2022年自考专科英语试卷及答案 (8)

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机械设计试卷试卷8校名___________ 系名___________ 专业___________姓名___________ 学号___________ 日期___________一、选择题:把正确的选项代号填入()中(本大题分9小题, 每小题2分, 共18分)1、常见的联接螺纹是_________。
200A. ='F+FB. <'F+FC. >'F+FD.='F+F24、考虑滑动率ε,则带传动的实际传动比______________。
A.idd=+d2d1()1εB.idd=+d2d1()12εC.idd=-d2d1()1εD.idd=-d2d1()1ε5、带传动紧边拉力为F1,松边拉力为F2,小带轮包角为α,带与带轮间的摩擦系数为μ,则有:________。
A.FFe12=μα B.FF12=μα C.FFe21=μα D.FF21=μα6、考虑滑动率ε,则带传动的实际传动比______________。
A.idd=+d2d1()1εB.idd=+d2d1()12εC.idd=-d2d1()1εD.idd=-d2d1()1ε7、8、A.角接触球轴承反安装,内圈间加垫片B.一对角接触轴承内圈间和外圈间分别装入长度不等的套筒C.角接触球轴承正安装,外圈间加垫片D.弹簧预紧9、V带(三角带)传动中,下列____________方案不能使传递功率增大。
A. 小带轮直径dd1不变,加大传动比 B. dd1不变,加大中心距C. A型带改成B型带,dd1不变 D. dd1不变,增大根数z二、填空题:把答案写在题中的空格里(本大题分9小题, 每小题2分, 共18分)1、滚动轴承按可承受的载荷方向分类,主要承受径向载荷,同时可以承受轴向载荷的为__________轴承,只能受轴向载荷的称为_________轴承。
2、具有自锁性的螺旋传动,其传动效率最高不会超过______。
3、强度级别为6.8级的螺栓材料,其屈服极限σS=______ MPa。
4、根据定义,滑动轴承的相对间隙ψ=___________________,偏心率ε=______________。
(或相对偏心距χ=_________________。
)5、滚动轴承内圈与轴颈配合选为φ40k6,对一般基孔制的孔为___________配合,实际上对滚动轴承内圈的孔是__________配合。
6、在各种类型的滚动轴承中,深沟球轴承应用最广泛,这是因为它具有____________________________________的优点。
7、在_____________________及____________________等工况下(举出三点),轴承内圈与轴常采用较紧的配合,而在_________________或_____________场合则采用较松配合。
8、机械产品的“三化”的重要意义有___________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _________________________________________。
(要求写出四种)9、闭式蜗杆传动进行热平衡计算的条件是_____________________________________________________________________。
三、分析题:简要回答以下问题(本大题共2小题,总计12分)1、2、五、计算题:计算下列各题 ( 本 大 题10分 )用压板夹持加工零件,要求夹持力F =12000N ,压板材料的许用弯曲应力为[]σb MPa =50。
1.分析螺栓装在什么位置压板强度最弱?2.按最不利条件定压板厚度h 。
六、大型题:计算下列各题(本大题共2小题,总计32分) 1、(本小题14分)一对斜齿圆柱齿轮传动,由强度设计得:mn =3.5mm,,z1=25,z2=76,β=10︒54'16"。
已知传递的功率P1=75kW,转速n1=730r/min。
求从动轮所受各2、(本小题18分)已知链节距p=19.05mm,主动链轮齿数z1=23,转速n1=970r/min。
试求平均链速v、瞬时最大链速vmax 和瞬时最小链速vmin。
试卷8参考答案注:各主观题答案中每步得分是标准得分,实际得分应按下式换算:第步实际得分本题实际得分解答第步标准得分解答总标准得分N=N ⨯一、选择题:把正确的选项代号填入()中(本大题分9小题, 每小题2分, 共18分)1、C2、D,B,A,C3、B4、C5、A6、C7、B8、B9、A二、填空题:把答案写在题中的空格里(本大题分9小题, 每小题2分, 共18分)1、向心推力,推力2、50%3、4804、ψδεδχδ===-=re eR re ,()5、过渡,过盈6、价格低,应用范围广7、转速愈高,载荷愈大,振动愈大,工作温度愈高经常拆卸,载荷较轻8、1)采用标准结构及标准零部件,可以减化设计工作,缩短设计时间;2)便于组织专业化或大规模生产;3)有利于提高生产率、产品质量、节约材料及降低成本;4)具有互换性,便于机器的维护;5)有利于改进和提高设计质量,扩大和开发新品种;6)减少技术过错(设计中的差错)的重复出现。
9、蜗杆传动达到最高允许温度时,单位时间内的发热量等于或小于同时间内的散热量。
三、分析题:简要回答以下问题(本大题共2小题,总计12分)1、(本小题6分)1)各分力见图。
2)Ft1=Ft2,Fa1=Fr2,F r1=F a2H a H b H b圈a点受变幅脉动应力,图示位置时应力σH a最大,a点转至上半圈时不受力。
四、结构题:(12(1.当螺栓在右端a=350mm,b=50mm时最危险。
2.M=⨯=⨯⋅.N mm1200035042106σ==⨯-⨯M bh h /(/)./[()/]2626421015040650≤MPah =⨯⨯⨯=[./()].6421011050677612mm六、大型题:计算下列各题 (本大题共2小题,总计32分) 1、(本小题14分)T P n 1611695510955107573098116438=⨯=⨯⨯=⋅...N mm d m z 11352510541689109==⨯'''=n mm cos .cos .β F T d t N ==⨯=229811643889109220216711...2、(本小题18分)1)平均链速vv z pn =⨯=⨯⨯⨯=11601000231905970601000708..m /s2)主动链轮分度圆直径d 1d p z 1118019051802313990=︒=︒=sin .sin.mm 3)主动链轮圆周速度v 1v d n1116010001399970601000710=⨯=⨯⨯⨯=ππ..m/s4)瞬时链速的最大值和最小值瞬时链速:v v=1cosβ当β=0时,v v v===max .1710m/s当β=±︒1801z时,v v vz==︒=⨯︒=mincos..111807118023703m/s。