奥鹏华中师范大学2020年3月课程考试《数据库技术及应用》考前练兵资料及答案.doc
奥鹏华中师范大学2020年3月课程考试《大学英语(1)》考前练兵资料及答案.doc
单选题1.Having decided to rent a flat, we ______ contacting all the accommodation agencies in the city.A.set aboutB.set downC.set outD.set up答案: A2.If it quite ______ to you, I will visit you next Tuesday.A.convenientB.fairC.easyfortable答案: A3.He works too hard. That is ___is wrong with him.A.that whichB.that whatC.whatD.the thing what答案: C4.Jane said she _______ sending e-mails _______ letters.A.preferred ; to writingB.preferred ; to writeC.prefers ; writingD.prefers ; to writing答案: A5.Sally _____ in an office in central London.A.is workB.WorkC.works答案: C6.Please be careful when you are drinking coffee in case you _______ the new carpet.A.crashB.polluteC.spotD.stain;答案: D7.Students or teachers can participate in excursions to lovely beaches around the island at regular _______.A.gapsB.rateC.lengthD.intervals答案: B8.The professor paused as if ________ his students to ask question on the point he had just made.A.to expectB.expectingC.to have expectedD.expected答案: B9.It has been over 350 years _______ the first settlements in the United States were made by Europeans.A.afterB.beforeD.for答案: C10.Jack ____ a very promising young singer.A.is looked upon asB.looks upon asC.is looked on likeD.looks upon like答案: A11.She had _______ such a lot during her visit that all her colleagues(同事) admired her very much.A.accomplishedB.finishedpleteD.fulfill答案: A12.If you __________ to meet xiao liu, tell her to come at once.A.happenB.intendC.attemptD.expect答案: A13.She was, _______ fame and fortune, basically an unhappy woman.A.despite ofB.in spite ofC.spiteD.except答案: B14.Not that John doesn’t want to help you, _______ it’s beyond his power.B.but thatC.for thatD.and that答案: B15.If I have a good sleep I'll be _____ to work out the problem.A.possibleB.ableC.capableD.reasonable答案: B16.The play ends with the heroine _____ desperately as her lover resolutely walks away.A.soakingB.soaringC.sobbingD.sobering答案: C17.Fresh air, enough exercise and nutritious food _______ to sound health.A.appealB.contributeC.addD.distribute答案: B18.If you ______ the bottle and cigarettes, you’ll be much healthier.A.take offB.keep offC.get offD.set off答案: B19.Physics is _______ to the science which was called natural philosophy in history.A.alikeB.equivalentC.likelyD.uniform答案: B20.You needn't thank me . This is what I ____ do.A.should be able toB.had betterC.ought toD.might答案: C21.My mother is a doctor. She is ( ) medicine.A.fromB.atC.in答案: C22.My wife said she _____ a classmate of hers in the street today.A.caught sight ofB.caught glance ofC.lost sight ofD.took a glance at答案: A23.They told the story as if it ____ to them.A.has happenedB.happenedC.had happenedD.would happen答案: C24.This radio is ____ than that one.A.more expensiveB.very expensiveC.as expensiveD.much expensive答案: A25.If only the committee _______ the regulations and put them into effect as soon as possible.A.approveB.will approveC.can approveD.would approve答案: B26.My father told me to be an honest man on numerous ______ .A.situationsB.occasionsC.chancesD.environments答案: A27.The train pulled and all the passengers got .A.in, offB.up, onC.down, outD.out, off答案: A28.To his mother’s relief, the naughty boy emerged ____ the crowd.A.amidstB.from amidstC.behindD.from behind答案: D29.People such as teachers, government officials and bank managers earn ________.A.wagesB.incomeC.salariesD.pay答案: C30.We didn’t know his telephone number; otherwise we _______ him.A.must have telephonedB.would have telephonedC.would telephoneD.had telephoned答案: B31.The new appointment of our president _______ from the very beginning of next semester.A.takes effectB.takes partC.takes placeD.takes turns答案: A32.— Jim, it's so nice of you to help me.— _______.A.My pleasureB.You're rightC.No problemD.It's my turn答案: A33.Please out when the ship sails for Shanghai.A.lookB.findC.searchD.research答案: B34.I just _____ at the office for most of the day, and I do no exercise.A.sit aroundB.sit inC.sit down答案: A35.When _____ for London?A.is she flyingB.she fliesC.she is going to fly答案: A36.—Do you mind my smoking here?—_________.A.No, thanks.B.Yes, I do.C.Yes. I'd rather not.D.Good idea.答案: B37.The car accident____the driver’s carelessness.A.resulted fromB.led toC.ended inD.tended to答案: A38.Not until the game had begun _______ at the sports ground.A.should he have arrivedB.had he arrivedC.did he arrivedD.would he have arrived答案: C39.—Tomorrow is my birthday.—__________.A.Oh, I have a good idea.B.I am glad you like it.C.Many happy returns of the day!D.You must be very happy.答案: C40.There he _______ his English, and learnt bookkeeping, accounting, shorthand and correspondence.A.enabledpletedC.improvedD.discovered答案: C41.If you ___ to misunderstand your parents, you'll make it difficult to decline the generation gap (代沟).A.thinkB.selectC.chooseD.ask答案: C42.I'd rather read than watch television; the programs seem _______ all the time.A.to get worseB.to be getting worseC.to have got worseD.getting worse答案: C43.The human ______ is the center of higher nervous activity.A.brainB.mindC.headD.thought答案: A44.A: _____ is the nearest chemist’s?B: On the corner.A.WhatB.WhereC.How答案: B45.His two-year-old daughter ______ his research report ______ pieces.A.tore…intoB.tore… inC.tore …outD.tore…off答案: B46.The strong storm did a lot of damage to the coastal villages: several fishing boats were _______ and many houses collapseA.wreckedB.spoiledC.tornD.injured答案: D47.Jack has arrived already,A.had heB.has heC.hadn't heD.hasn't he答案: D48.His work suggests that he____ ready for more responsibility now.A.wasB.isC.may beD.should be答案: B49.This is the ______ piano on which the computer created some of this great works.A.actualB.genuineC.realD.original答案: A50.There is ____ traffic on the streets after the rush hour.A.noneB.fewerC.lessD.few答案: C51.Now the _____ between the rich and the poor countries has become even wider.A.differentB.differC.gapD.distinction答案: C52.Sally’s parents _____ come and stay with her soon.A.are goingB.are going toC.is going to答案: B53.The school required that every student ________ to his/her dormitory before 11:30 at night.A.returningB.returnsC.returnedD.return答案: C54.Hello, _____ Franco Rossi speaking. Can I speak to Polly Williams?A.this isB.he isC.I am答案: A55.The crowd suddenly burst into loud _____.ughughtersughingughter答案: D56.Rose is _____ easy-going than Frank in the interview.A.muchB.manyC.much more答案: C57.— You seem to show interest in cooking.— What? ____, I'm getting tired of it.A.On the contraryB.To the contraryC.On the other handD.To the other hand答案: A58.The president made a _______ speech at the opening ceremony of the sports meeting, which encouraged the sportsmen greatly.A.vigorousB.tediousC.flatD.harsh答案: A59.A: So, do you like the cinema near Hyde Park?B: Yes, I _____ it.A.loveB.am lovingC.loves答案: A60.They didn't guarantee to _______ me a job when I asked them to help me.A.discoverB.inventC.find outD.find答案: D61.By next summer John in his factory for three years.A.have been workingB.will have been workingC.will be workingD.has worked答案: B62.Her parents were very _____ because she was out so late that night.A.responsibleB.sorryC.worriedD.overcome答案: Cst year the advertising rate _______ by 20 percent.A.raisedB.arousedC.aroseD.rose答案: B64.At first, she was talking about the problem of pollution, but suddenly she ____to another subject.mittedB.transformedC.shiftedD.favored答案: C65.I have a headache. Would you please _______ the TV?A.turn upB.turn onC.turn offD.turn over答案: C66.Despite such a big difference in ____towards what one eats, there is no doubt that people in the west regard the Chinese food as something special.A.pointB.ideaC.attitudeD.sight答案: C67.You had a shock when you heard the news, ________ you?A.hadn'tB.didn'tC.wouldn'tD.won't答案: B68.How do I _____ the gym?A.get toB.arriveC.go答案: A69.You don't have to describe her. I _______ her several times.A.had metB.have metC.metD.meet答案: B70.Both kindness and firmness are needed to ________ domestic animals successfully.A.practiceB.traincateD.tutor答案: B71.It’s nearly seven o’clock. Jack _____ be there at any moment.A.mustB.needC.should答案: C72.Harry was ____ by a bee when he was collecting the honey.A.stungB.bittenC.strickenD.hit答案: A73.Their dialogue was so funny that we all _______ laughterA.broke intoB.broke upC.broke awayD.broke out答案: A74.Most of the applicants have been admitted to the program. But that is not the _______ with Peter.A.trueB.wayC.caseD.result答案: C75.I’m bad at spelling, but Jane is _____ me.A.bad withB.worse thanC.less than答案: B76.The students hurried to the classroom the bell rang.A.untilB.as soon asC.ifD.so that答案: B77.A: I’m keen on football.B: So _____ I.A.haveB.doC.am答案: C78.Building the railways from Beijing to Jiulong ________ the construction of more than ten bridges.A.involvedB.evolvedC.revolvedD.violate答案: A79.A number of students ____ provided with this opportunity to study abroad.A.have beenB.has beenC.haveD.is答案: A80.A: He has got two sisters.B: _____.A.So have IB.So am IC.So do I答案: A81.With the population explosion, scientists will have to _______ new methods of increasing the world's food supply.A.lead toB.carry oute up withD.catch up with答案: C82.As students, we must often memorize ____information.rge amounts ofB.a great number ofC.a great manyD.numbers of答案: A83.You see the lightning _____ it happens, but you hear the thunder later.A.the instantB.for an instantC.on the instantD.in an instant答案: A84.Whose dog is it?_____ our dog. _____ name is Rex.A.It’s … It’sB.Its… ItsC.It’s… Its答案: C85.Something is wrong with your radio; you’d better ____.A.having it repairedB.to have it repairedC.have it be repairedD.have it repaired答案: D86.The weather report says that there will be a strom ____ two days.A.untilB.beforeC.inD.by答案: C87.My friend ____ lots of time learning English.A.tookB.costC.paidD.spent答案: D88.—Hi, haven't seen you for ages! You look fine.—___________. You look well, too.A.GreatB.ThanksC.Oh, noD.Not at all答案: B89.The general manager was ____ busy to see visitors.A.too muchB.muchC.much tooD.very much答案: C90.If she doesn’t tell him the truth now, he’ll simply keep on asking her until she _____.A.doesB.has doneC.will doD.would do答案: A91.Only bychance.A.I heard that her mother had diedB.did I hear that her mother had diedC.Had I heard that her mother had diedD.I had heard that her mother had died.答案: B92.Don't blame him for the fault. ______, he is new to the work.A.Above allB.All in allC.All alongD.After all答案: D93.All ____ should be done has been doneA.whatB.whichC.whateverD.that答案: D94.Mr. Morgan can be very sad _______, though in public he is extremely cheerful.A.by himselfB.in personC.in privateD.as individual答案: C95.I feel it an honor _______ to speak here.A.askingB.to be askedC.to askD.having asked答案: B96.—Do you know _______ I could pass the exam?—Sorry, I've no idea.A.thatB.whetherC.whatD.which答案: B97.– Hurry up. The lecture begins at 2:00.– ( ).A.Don't worry. We've got 20 minutesB.Thank you. No hurryC.Never mind. You go if you likeD.The lecture is useful答案: A98.Liquids are a better medium for sound than gases; and solids are even liquids.A.better thanB.good asC.no better thanD.so good as答案: A99.____, we stopped to look at the map.A.Knowing not which road to takeB.Not knowing which road to takeC.Not know which road to takeD.Not to know which road to take答案: B100.—Can I help you?—Yes, ____________.A.I'd like to see that shirt, please.B.I'm afraid not.C.may I invite you to dinner?D.I just have a look.答案: A101.It often _____ in winter in the north of China.A.snowB.is snowingC.snows答案: C102.We ___ eighteen lessons by the end of this term.A.have studiedB.had studiedC.will be studyingD.will have studied答案: D103.He used to_______ in the sun，but now he gets used to ______ at night.A.read;readB.reading;readC.read;readingD.reading ;reading答案: C104.Are there among the new books that interest youA.someB.oneC.anyD.both答案: C105.Jane and Paul like good coffee, so go and get some good coffee for ( ).A.theyB.themC.their答案: B106.The speed of light is greater than _____ of sound.A.thisB.thatC.theseD.those答案: B107.If we had hurried, we ________ the train.A.caughtB.could catchC.would have caughtD.would catch答案: C108.Free medical treatment in this country covers sickness of mind as well as _______ sicknessesA.normalB.regularC.averageD.ordinary答案: D109.Please _____ out when the ship sails for Shanghai.A.lookB.findC.searchD.research答案: B110.Some old people don't like pop songs because they can't _______ so much noise.A.resistB.sustainC.tolerateD.undergo答案: A111.I would appreciate _______ it a secret.A.your keepingB.you to keepC.that you keepD.that you will keep答案: A112.The manager will not _______ us to see use his car.A.haveB.letC.agreeD.allow答案: D113.He _____ in travelling.A.is interestedB.interestedC.interests答案: A114.The girl in the snapshot was smiling sweetly, ________.A.her long hair flowed in the breezeB.her long hair flowing in the breezeC.her long hair flow in the breezeD.her long hair was flowing in the breeze答案: B115.___________ travellers come to visit our city every year.A.Hundred ofB.Hundreds ofC.Five hundredsD.Hundred答案: B116.We feel great pity _____ war victims.A.atB.onC.forD.about答案: C117.In the United States he had to earn a ______ as a motorcar salesmanA.lifeB.moneyC.livingD.diet答案: C118.She got up early in the morning ______ she should be late for the train.A.ifB.in case ofC.lestD.so that答案: C119.____he works hard, I don’t mind when he finishes the experiment.A.As soon asB.As well asC.So far asD.So long as答案: D120.I’m not ____what you have finished. Try it again!A.familiar toed toC.content withD.interested in答案: C121.Mary’s score on the test is the highest in her class; she _____ have studied very hard.A.mayB.shouldC.mustD.ought答案: C122.A political dispute ____ several nations may be settled by an agreement between them.A.promotingB.involvingC.contactingD.determining答案: B123.My aunt ( ) for her friends at home.A.enjoy cookingB.enjoys cookC.enjoys cooking答案: C124.– What do you find difficult in learning English?– ( ).A.Listening and speakingB.Don't be afraid of difficultiesC.Learning English is usefulD.Don't be disappointed答案: A125.Williams _____ in London, not in China.A.liveB.livesC.is live答案: B126.A: _____ is David from?B: I think he’s an American. But I’m not sure.A.WhereB.WhatC.How答案: A127.Mr Smith looked very depressed. Do you know trouble wasA.hisB.why hisC.how hisD.what his答案: D128.They ____the new laboratory ____ many tape recorders of high qualityA.install… withB.equip… withC.reward … withD.qualify… for答案: B129.The books which youmost those which you think most.A.helps, is, makesB.help, are, makeC.will help, are, will makeD.helped, were, made答案: B130.got outside than it began to rain.A.Not sooner I hadB.No sooner hadC.No sooner ID.Hardly had I答案: B131.The conference _______ a full week by the time it ends.A.must have lastedB.will have lastedC.would lastD.has lasted答案: C132.--What is your job?--I am _____ information technology manager.A.anB.aC./答案: A133.You ______ all those calculations! We have a computer to do that sort of thing.A.needn’t have doneB.must not have doneC.shouldn’t have doneD.must have done答案: A134.After a number of disagreements with the committee, the chairman decided to _____A.withdrawB.resignC.retireD.leave答案: B135.The police have decided to____ the traffic accident as soon as possible.A.look onB.look upC.look intoD.look for答案: C136.____it or not, his discovery has created a stir in scientific circles.A.BelieveB.To believeC.BelievingD.Believed答案: B137.I remember ________ for the job, but I forget the exact amount.A.to be paidB.that I payC.get paidD.being paid答案: D138.We’ve both found ____ in each other over the past weeks, and these are a huge comfort.A.powerB.potentialC.strengthsD.interests答案: C139.What is the penalty speedingA.againstB.onC.forD.to答案: C140.It is important that these application forms ________ back as early as possible.A.must be sentB.will be sentC.are sentD.be sent答案: D141.The manager spoke highly of such ______ as loyalty, courage and truthfulness shown by his employeesA.virtuesB.featuresC.propertiesD.characteristics答案: A142.Kindness is the most important __________ a man can have.A.effortB.habitC.qualityD.question答案: C143.An investigation was made into the accident, ______ fifty people were killed.A.for thatB.whenC.whereD.in which答案: D144.I don't want _____ milk in my coffee.A.anyB.someC.manyD.much答案: A145.She _____ work next Monday.A.is startingB.startsC.startedD.has started答案: A146.David’s younger brother is _____ engineer.A.aB.anC.the答案: B147.A: Should I take some medicine?B: No, you don’t _____ to take any medicine.A.shouldB.mustC.need答案: C148.We had some trouble ____ the house and nobody seemed ____ where it was.A.in finding...knowingB.finding...to knowC.to find...knowingD.to find...to know答案: B149.A: I am from England.B: _____.A.So am IB.So do IC.So have I答案: A150.I usually get up ( ) 7 o'clock ( ) the morning.A.past, onB.at, inC.in, in答案: B151.I've got a lot of photos of my traveling. Would you ( )them?A.like to seeB.like seeingC.like see答案: A152.Mrs. Smith warned her daughter ________ after drinking.A.never to driveB.to never driveC.never drivingD.never drive答案: A153.There's a man at the reception desk who seems very angry and I think he means trouble.A.makingB.to makeC.to have madeD.having made答案: B154.I have been looking for this book for months, and _____ I have found it.A.at leastB.in no timeC.at lastD.at present答案: C155.A pre-decided career objective is ____ for success.A.possibleB.essentialC.preciousD.worthwhile答案: B156.____one time, Manchester was the home of the most productive cotton mills in the world.A.OnB.ByC.AtD.Of答案: D157.Do you feel like ____ out or would you rather ____ dinner at home?A.going...to haveB.to go...to haveC.to go...havingD.going...have答案: D158.David is ( ) only accountant in my son's company.A.theB.anC.a答案: A159.we stopped to look at the map.A.Knowing not which road to takeB.Not knowing which road to takeC.Not know which road to takeD.Not to know which road to take答案: B160.– Is there a drugstore near here?– ( ).A.It's very smallB.It's very crowdedC.It's a cheap oneD.Yes, there is a big one答案: D161.Tom is ____ opposed to the plan than Jim.A.much more stronglyB.more much stronglyC.strongly much moreD.strongly more much答案: A162.– Go that way and take a seat.– ( ).A.No, I'm not tiredB.Thanks, but I'd rather standC.Yes, that's a good wayD.It doesn't matter答案: B163.Polly enjoys ( )in a band in her free time.A.play the guitarB.to playing the guitarC.playing the guitar答案: C164.This is the outline of our program. We wantthem the details.A.working outB.making outC.to work outD.to make out答案: C165.These books will provide us____all the information we need.A.onB.inC.aboutD.with答案: D166.He often works in ( )evening.A.aB./C.the答案: C167.How do I ( )the gym?A.get toB.arriveC.go答案: A168.John is ( ) experienced at training than Mary is.A.moreB.worseC.much答案: A169.( ) a coffee machine in the room?A.Are thereB.Is thereC.Have there答案: B170.The judge ____ him of giving false testimony（证词）to the court.A.suspectedB.doubtedC.consideredD.distrusted答案: A171.Only in this way____the pollution problem effectively.A.we can deal withB.can we deal withC.we will deal withD.do we deal with答案: B172.The teacher told them ________ make so much noise.A.don'tB.notC.will notD.not to答案: D173.Frankly speaking, I’d rather you _______ anything about it for the time being.A.have doneB.haven’t doneC.don’t doD.didn’t do答案: D174.Please ____ that you attend the meeting on time.A.take careB.look afterC.look outD.see to it答案: D175.The manager lost his _______ just because his secretary was ten minutes late.A.moodB.temperC.mindD.passion答案: C176.____I’ve bought a new dictionary, I’ll not use yours any more.A.ForB.WhileC.Now thatD.Just that答案: C177.You overslept this morning. You _____ your alarm clock.A.should setB.should have setC.must setD.would have set答案: B178.A: I prefer watching TV.B: So _____ I.A.haveB.amC.do答案: C179.But I _____ weight if I don’t exercise.A.put upB.put onC.put with答案: B180.Mary ( ) brown eyes and golden hair.A.haveB.have gotC.has got答案: C181.( )would you like, tea or coffee?A.HowB.WhyC.What答案: C182.– Must we hand in our homework now?– ( ).A.Yes, you willB.Yes, you mustn'tC.No, you needn'tD.No, you mustn't答案: C183.Smoking constitutes a danger _____ one's health.A.ofB.withC.inD.to答案: D184.A: _____ was the meeting like?B: It was very exciting.A.HowB.WhatC.Why答案: A185.I sometimes go to the pub ( ) Friday ( ) my colleagues.A.on, withB.at, toC.in, for答案: A186.The boys are sweating all over. They____A.must be workingB.must have been workingC.may be workingD.must work答案: B187.I’m a nurse. I work _____ David _____ the same hospital.A.by… onB.of… atC.with… in答案: C188.—How are you feeling?—Much better. _________.A.Thanks for coming to see me.B.You look great.C.You are so tired.D.Don't mention it.答案: A189.Trains stop here in order to _____ passengers only.A.get offB.pick upC.pull upD.pull in答案: B190.It ______ heavily here at this moment.A.rainB.rainsC.is raining答案: C191.– I think the Internet is very helpful.– ( ).A.Yes, so do IB.That's a very good ideaC.Neither do ID.I'd rather go surfing on it答案: A192.There are so many dark clouds in the sky. It is _______ that a heavy rain is coming.B.sureC.necessaryD.certain答案: D193.A ____sentence has one or more clauses besides the main clause.A.specialB.principalC.particularplex答案: D194.My husband doesn't ( ), but I like it very much.A.like shoppingB.like shopC.likes shopping答案: A195.– Can I help you to get it down?– ( ).A.No problemB.Yes. Let's get itC.Thanks. It's so nice of youD.It's no trouble at all答案: C196.A: Would you like to come to _____ shop one day?B: Yes, I’d love to. Thank you.A.myselfB.meC.myD.I197.James is _____ French than Polly.A.a bit better atB.a bit more good atC.a bit good at答案: A198.Why is she ( )lunch so early? It's only 10 now.A.havingB.haveC.has答案: A199.We often have ( ) supper at home.B.oursC.our答案: C200.– I wonder if Tim could control the situation.– ( ).A.It's none of your businessB.You'll get involved in itC.Tim must be thinking about itD.Well, if he can't control it, no one can答案: D201.The young Americans have their own right to deal with their marriage and ____ their parents.A.depend onB.are independent ofC.are independent onD.are dependent on答案: B202.— How did you find your visit to Qingdao, Joanna?—______.A.Oh, wonderful indeed.B.I went there alone.C.First by train and then by ship.D.A guide showed me the way.答案: A203.We suggested ____ in hotels but the children were anxious ____ out.A.sleeping...to campB.sleeping...campingC.to sleep...to campD.to sleep...camping答案: A204.John is _____ experienced at training than Mary is.A.moreB.worseC.much答案: A205.Please don't forget _______to me, will you?A.to writeB.writingC.writeD.writes答案: A206.– Could you tell me where Mr. Lake is?– ( ).A.From EnglandB.At the officeC.He's workingD.He's very busy答案: B207.– Which language do you speak at home?– ( ).A.I speak English very wellB.I can speak English and FrenchC.English is my mother tongueD.English, most of the time答案: D208.A new hotel( )in the centre of town at the moment.A.has been builtB.is builtC.is being builtD.was built答案: C209.– When does the next bus leave for Glasgow?– ( ).A.I've never been thereB.The next one is fasterC.They leave every hourD.The city is far away答案: C210.I’m a deputy manager. I work _____ an IT company.A.forB.aboutC.with答案: A。
奥鹏华中师范大学2020年3月课程考试《操作系统原理》考前练兵资料及答案.doc
单选题1.适用于实时操作系统的生成，但要求用户对计算机的硬件系统比较了解的一种操作系统的生成方法是A.源程序修改法B.模块剪裁法C.系统参数修改法D.面向对象的开发方法答案: A2.操作系统是对（）进行管理的软件。
A.系统软件B.计算机资源C.用户程序D.计算机硬件答案: B3.当系统响应用户要求，将输入的作业存入到直接存取的外部存贮器上，并等待调度执行时，则该作业处于A.提交状态B.后备状态C.执行状态D.完成状态答案: C4.主要用于人和机器之间的接口的设备称为A.字符设备B.块设备C.存贮设备D.传送设备答案: A5.在OS中，进程是一个具有独立功能的程序在某个数据集上的一次A.执行B.操作C.中断D.调度答案: A6.“线程”的概念是由（）引入的。
A.虚拟机B.微内核方法C.进程的概念D.多处理机环境答案: B7.面向对象的操作系统首先是为了保护（）而开发的，无论何种对象，都可以被看作是受保护的基本单位。
A.个人隐私B.资源共享C.公共资源D.网络资源答案: C8.用于连接高速I/O设备的通道是A.字节多路通道B.数组多路通道C.数据选择通道答案: C9.下列哪项不是分时操作系统的特点A.交互性B.多路性C.独占性D.自治性答案: D10.设备管理是对计算机（）的管理。
A.输入/输出系统B.存储设备C.供电设备D.虚拟设备答案: A11.下列关于缓冲池的说法中，错误的是A.缓冲池由多个缓冲区组成B.对缓冲池的管理是通过对每一个缓冲器的缓冲尾部进行操作实现的C.系统把各种缓冲区按其使用状况连成3种队列D.对缓冲池的管理由4个操作组成答案: B12.文件控制块FBC不包含的内容是A.文件名B.文件内容C.文件主的存取权D.文件的建立日期和时间答案: B13.在UNIX中，文件系统的目录结构采用的是A.线型结构B.二维结构C.树型层次结构D.网状结构答案: C14.在几种常见的数据传递方式中，CPU和外围设备只能串行工作的是A.程序直接控制方式B.中断方式C.DMA方式D.通道控制方式答案: A15.操作系统是（）软件。
奥鹏华中师范大学2020年3月课程考试《统计学》考前练兵资料及答案.doc
单选题1.统计表中的主词指的是( )。
A.各种指标所描述的研究对象B.描述研究对象的指标C.配置在表上方标题中的资料D.分布在表格中的数量特征答案: A2.企业领料单和入库单是( )。
A.统计台账B.企业内部报表C.原始记录D.以上都不是答案: C3.采用两个或两个以上标志对社会经济现象总体分组的统计方法是( )。
A.品质标志分组B.复合标志分组C.混合标志分组D.数量标志分组答案: B4.反映个体事物动态变化的相对数指标叫做( )。
A.总指数B.综合指数C.定基指数D.个体指数答案: D5.相关系数的取值范围是( )。
A.在0到1之间B.在-1到1之间C.在-1到0之间D.大于1而小于-1答案: B6.在总量指标中包括两个或两个以上的因素,将其中的被研究因素以外的所有因素固定下来,仅观察被研究因素的变动,这样编制的指数成为( )。
A.综合指数B.平均指数C.环比指数D.定基指数答案: A7.某工厂总生产费用今年比去年上升了50%,产量增加了25%,则单位成本提高了( )。
A.25%B.2%C.75%D.20%答案: D8.使用组中值代表该组数列的假设前提条件是( )。
A.组中值是平均数B.组中值是中间值C.组内数值均匀变化D.组中值最有代表性答案: C9.研究某高中的学生高考情况,其统计总体为( )。
A.每名高三学生B.高三所有学生C.某一班级D.某一学生成绩答案: B10.区别重点调查和典型调查的标志是( )。
A.调查单位数目不同B.收集资料方法不同C.确定调查单位标准不同D.确定调查单位目的不同答案: C11.“统计”一词的三种涵义是( )。
A.统计调查、统计整理、统计分析B.统计工作、统计资料、统计科学C.统计信息、统计咨询、统计监督D.统计理论、统计方法、统计技能答案: B12.统计是( )的科学。
A.社会B.自然C.综合D.方法论答案: D13.能够测定变量之间相关系密切程度的主要方法是( )。
奥鹏东财网考2020年3月课程考试《数据库原理与应用》复习资料参考答案
单选题1.使用数据库技术的主要目的是（）。
A.解决数据保密问题B.解决数据完整性问题C.解决数据共享问题D.解决数据量大的问题【参考答案】： C2.下列不属于数据库管理系统优点的是（）。
A.相互关联的数据的集合，较少的数据冗余B..程序与数据相互独立C.最大限度地保证数据的正确性D.难以按用户的要求表示数据【参考答案】： D3.面向对象数据模型是（）与数据库技术相结合的产物，用以支持非传统应用领域对数据模型提出的新需求。
A.模块化程序设计方法B.面向对象程序设计方法C.结构化系统分析方法D.结构化程序设计方法【参考答案】： B4.已知关系模式：S（学号，姓名，所在系，所在班，班主任），设一个学生只在一个系的一个班学习，一个班只有一个班主任。
则此关系模式属于（）。
A.1NFB.2NFC.3NFD.4NF【参考答案】： B5.有UNIQUE约束的列，其取值一定（）。
A.没有空值B.没有空值且不重C.取值不重，但允许有多个空值D.取值不重，但只允许有一个空值【参考答案】： D6.两个关系的（）运算是包含同时出现在第一和第二个关系中的元组的新关系。
A.并B.连接C.差D.交【参考答案】： D7.数据库概念结构的设计就是（）模型的设计。
A.物理B.逻辑C.E-RD.概念【参考答案】： C8.传统的集合“并、交、差”运算施加于两个关系时，这两个关系应该满足的条件有（）。
A.属性个数不相等B.对关系的属性及属性值没有要求C.相对应的属性值不必须取自同一个域D.属性个数相等【参考答案】： D9.在SQL语句中，下列涉及空值的操作，错误的是（）。
A.AVG IS NULLB.AVG IS NOT NULLC.AVG = NULLD.NOT(AVG IS NULL)【参考答案】： C10.数据的（）是指根据数据库逻辑结构设计和物理设计的结果将原始数据存放到数据库中去。
A.处理B.载入C.结构D.输出【参考答案】： B11.将SELECT语句的查询结果集再进行集合运算就构成了SQL的（）查询。
奥鹏华中师范大学2020年3月课程考试《培训与开发》考前练兵资料及答案.doc
单选题1.对于新员工的培训需求分析,通常使用( )来确定其在工作中需要的各种技能。
A.行为分析法B.层次分析法C.任务分析法D.绩效分析法答案: C2.战略层次的培训需求分析一般由( )发起。
A.咨询小组B.人力资源部C.部门主管D.高层管理者答案: B3.在制定人力资源培训开发长期计划时,对人力资源培训开发预算的估算不应该考虑( )。
A.各项人力资源培训开发活动所需经费B.各项人力资源培训开发活动所用设备器材的成本C.辅助人员的津贴和差旅费用D.人力资源培训开发部门员工的工资答案: D4.人力资源培训开发的实施步骤中,与人力资源培训开发能否获得成功关系最大的是( )。
A.人力资源培训开发时间和地点的选定考虑是否充分B.人力资源培训开发用具及相关材料准备得是否充足C.人力资源培训开发教师的素质和能力D.是否切实做好了人力资源培训开发的评估答案: C5.任何人力资源培训开发都产生于某种( )的需要之上。
A.市场、组织及人员B.产品、顾客及人员C.组织、工作任务及人员D.社会、市场及企业经营答案: C6.下列关于人力资源培训开发的操作程序正确的是( )。
A.人力资源培训开发的需要分析和评价——实施——反馈效果——评估——达成B.人力资源培训开发的需要分析和评价——实施——效果评估——反馈——达成C.人力资源培训开发的需要分析和评价——实施——达成——效果评估——反馈D.人力资源培训开发的需要分析和评价——实施——效果评估——达成——反馈答案: D7.对经营技能方面,包括销售因素分析与营销策略制定的人力资源培训开发主要针对( )。
A.营销督导层B.督导管理层C.决策管理层D.操作人员层答案: B8.人力资源培训开发与薪酬的关系是( )。
A.因果关系B.间接关系C.双赢关系D.直接关系答案: C9.在人力资源管理的下列部分中,( )与人力资源培训开发的关系与其他三个部分的关系不一样。
A.绩效考核B.人力资源规划C.薪酬激励D.人员招聘答案: B10.人力资源培训开发与教育之间存在着区别与联系,教育的目的侧重( );而人力资源培训开发的目的侧重( )。
奥鹏华中师范大学2020年3月课程考试《软件工程》考前练兵资料及答案.doc
单选题1.（）是对软件内部结构的一种调整，其目的是在不改变软件功能和外部行为的前提下，提高其可理解性、可扩展性和可重用性。
A.重构B.编码C.开发D.代码审查答案: A2.以下不是软件开发方法的主要工作模型的是( )。
A.螺旋模型B.循环模型C.瀑布模型D.专家模型答案: D3.测试过程的活动几乎贯穿整个开发过程,它大体分为( )三个阶段。
A.模块测试、组装测试、有效性测试B.模块测试、功能测试、回归测试C.单元测试、功能测试、用户测试D.单元测试、集成测试、确认测试答案: D4.下列描述错误的是( )。
A.自顶向下集成是从顶层开始采用同设计顺序一样的思路对被测系统进行测试，一般集中于顶层的组件，然后逐步测试处于底层的组件，被上层单元调用的下层单元以桩出现。
B.自底向上集成是从最底层组件开始，按照分解树的结构，逐层向上集成，调用下层单元的上层单元以驱动出现。
C.递增式集成是将要测试的模块逐渐集成到已经测试好的模块里面，边集成边测试，测完一部分再连接一部分。
D.递增式集成是将所有通过单元测试的模块一次性地集成到一起进行测试，也称为一次性组装或整体拼装。
答案: D5.系统分解的目标:( )。
A.高内聚、低耦合B.低内聚、低耦合C.高内聚、高耦合D.低内聚、高耦合答案: A6.软件测试中,黑盒测试法和白盒测试法是常用的方法。
黑盒测试主要是用于测试:( )。
A.内部结构合理性B.外部功能是否满足其功能说明C.程序运行速度D.程序内部逻辑正确性答案: B7.面向对象的动态模型中,每张状态图表示( )的动态行为。
A.有关联的若干个类B.某一个类C.一系列事件D.一系列状态答案: B8.测试用例是专门为了发现软件错误而设计的一组或多组数据,它由( )组成。
A.测试输人数据B.预期的测试输出数据C.测试输人和预期的输出数据D.按照测试用例设计方法设计出的数据答案: C9.若一个模块只具有单一的功能且与其他模块没有太多的联系,那么,我们则称此模块具有( )。
奥鹏华中师范大学2020年3月课程考试公司财务分析与管理考前练兵资料及答案
单选题1.财务报表分析的对象是企业的基本活动，不是指()A.筹资活动B.投资活动C.经营活动D.全部活动答案：D2.不会分散原有股东的控制权的筹资方式是()A.吸收权益投资B.发行长期债券C.接受固定资产捐赠D.取得经营利润答案：B3.最早运用的财务分析技术形式是()A.比率分析B.因素分析C.趋势分析D.动态分析答案：A4.应用水平分析法进行分析评价时关键应注意分析资料的()A.全面性B.系统性C.可靠性D.可比性答案：D5.以下资产负债表的项目中受销售收入“驱动”的项目是()A.股本B.长期投资C.存货D.长期借款答案：C6.以下不属于短期资产项目的是()A.固定资产B.存货C.短期投资D.银行存款答案：A7.销售成本利润率是指()A.产品销售利润与产品销售成本之比B.利润总额与销售成本费用之比C.净利润与产品销售成本之比D.营业利润与产品销售成本费用之比答案：A8.下列项目中，不属于长期资产项目的是()A.固定资产B.无形资产C.长期投资D.待摊费用答案：D9.社会贡献率指标是哪一利益主体最关心的()A.所有者B.经营者C.政府管理者D.债权者答案：C10.企业资产经营的效率主要反映企业的()A.盈利能力B.偿债能力C.营运能力D.增长能力答案：C11.企业发放股票股利的结果是()A.企业资产增加B.企业负债减少C.企业所有者权益内部结构调整D.企业所有者权益增加答案：C12.每股收益指标的计算公式为()A.净利润/流通股数B.(净利润-优先股股息)/加权平均的流通股股数C.利润总额/加权平均的流通股股数D.(净利润+优先股股息)/流通股股数答案：B13.利息保障倍数是指()与利息支出总额之比A.利润总额B.息税前利润C.税后净利D.主营业务利润答案：B14.计算流动资产垫支周转率应选择的流动资产周转额为()A.销售收入B.销售成本费用C.全部收入D.销售成本答案：D15.计算材料周转率使用的材料周转额为()A.当期材料采购额B.当期材料发出额C.当期材料消耗额D.上期材料消耗额答案：C16.会计调整对利润的影响可从()取得信息A.利润表B.利润表附表C.资广负债表D.利润表附注答案：D17.公司为了稀释流通在外的本公司股票数景,降低每股价格，从而吸引更多的投资者。
奥鹏华中师范大学2020年3月课程考试行政管理学考前练兵资料及答案
单选题1.（）是指行政组织实现预期目的的适应性和能力，是对行政组织功能的评价。
A.行政速度B.行政效能C.行政效益D.行政环境答案：B2.公共选择理论的代表人物是（）。
A.布坎南B.洛克C.西蒙D.登哈特答案：A3.国务院的行政立法权限是指（）。
A.法律B.地方性法规C.行政法规D.地方规章答案：C4.中国历史演变连续过程中所形成的社会文化系统称为（）。
A.社会主义文化B.大众文化C.传统文化D.政治文化答案：C5.雷格斯在《行政生态学》中将社会分为三种形态，即农业社会、工业社会和（）。
A.古代社会B.过渡型社会C.发达社会D.官僚社会答案：B6.从管理学角度说，决策的过程是制定行动方案并加以()A.搜集整理的行为过程B.比较分析的行为过程C.优化抉择的行为过程D.对照取舍的行为过程答案：C7.对于一般的省、市、县、乡而言，实行民族自治的自治区、自治州、自治县、自治乡就是()的行政区。
A.特殊型B.发展型C.传统型D.现代型答案：A8.()能够拓宽房地产行业的融资渠道，有利于分散房地产市场的金融风险。
A.房地产信托融资B.房地产基金C.房地产开发贷款D.个人住房按揭贷款答案：B9.()是指贷款人向借款人发放的用于商品住房及其配套设施开发建设的贷款。
A.银行贷款融资B.信托融资C.股票融资D.房地产债券融资答案：A10.通用电气公司的前总裁杰克.韦尔奇创造了（）。
A.矩阵型结构组织B.团队结构C.虚拟结构D.无边界组织答案：D11.新型的组织结构不包括（）。
A.团队结构B.虚拟结构C.官僚结构D.无边界组织答案：C12.企业寻求扩大经营规模，采用集中成长战略或多元化战略，这是企业米取了（）。
A.稳定战略B.增长战略C.经营战略D.收缩战略答案：B13.企业基本不做重大变革，保持既有的产品结构和服务，维持市场份额和企业的投资回报率，这是企业采取了（）。
A.稳定战略B.增长战略C.经营战略D.收缩战略答案：A14.企业战略管理的第一步是（）A.确定企业当前的使命、目标和战略B.SWO粉析C.构造战略和实施战略D.评估战略答案：A15.被誉为“科学管理之父”的人是（）。
奥鹏华中师范大学2020年3月课程考试培训与开发考前练兵资料及答案
单选题1.对于新员工的培训需求分析，通常使用()来确定其在工作中需要的各种技能。
A.行为分析法B.层次分析法C.任务分析法D.绩效分析法答案：C2.战略层次的培训需求分析一般由()发起。
A.咨询小组B.人力资源部C.部门主管D.高层管理者答案：B3.在制定人力资源培训开发长期计划时，对人力资源培训开发预算的估算不应该考虑()。
A.各项人力资源培训开发活动所需经费B.各项人力资源培训开发活动所用设备器材的成本C.辅助人员的津贴和差旅费用D.人力资源培训开发部门员工的工资答案：D4.人力资源培训开发的实施步骤中，与人力资源培训开发能否获得成功关系最大的是()。
A.人力资源培训开发时间和地点的选定考虑是否充分B.人力资源培训开发用具及相关材料准备得是否充足C.人力资源培训开发教师的素质和能力D.是否切实做好了人力资源培训开发的评估答案：C5.任何人力资源培训开发都产生于某种()的需要之上。
A.市场、组织及人员B.产品、顾客及人员C.组织、工作任务及人员D.社会、市场及企业经营答案：C6.下列关于人力资源培训开发的操作程序正确的是()。
A.人力资源培训开发的需要分析和评价一一实施一一反馈效果一一评估一一达成B.人力资源培训开发的需要分析和评价一一实施一一效果评估一一反馈一一达成C.人力资源培训开发的需要分析和评价一一实施一一达成一一效果评估一一反馈D.人力资源培训开发的需要分析和评价一一实施一一效果评估一一达成一一反馈答案：D7.对经营技能方面，包括销售因素分析与营销策略制定的人力资源培训开发主要针对()。
A.营销督导层B.督导管理层C.决策管理层D.操作人员层答案：B8.人力资源培训开发与薪酬的关系是()A.因果关系B.间接关系C.双关系D.直接关系答案：C9.在人力资源管理的下列部分中，()与人力资源培训开发的关系与其他三个部分的关系不一样。
A.绩效考核B.人力资源规划C.薪酬激励D.人员招聘答案：B10.人力资源培训开发与教育之间存在着区别与联系，教育的目的侧重()；而人力资源培训开发的目的侧重()。
3月计算机三级考试数据库技术真题及答案3
3月计算机三级考试数据库技术真题及答案3 2020年3月计算机三级考试数据库技术真题及答案32020年3月计算机等级考试时间在3月24日-26日，目前真题还没有公布，会继续更新最新，请考生们先参考历年真题。
一、选择题1.下列不属于概念设计目标的是__________。
A.定义和描述应用领域涉及的数据范围B.描述清楚数据的属性特征C.定义和描述数据的约束D.确定数据的结构2.下列关于数据库概念设计的说法中，错误的是__________。
A.抽象实体集时需将具有相同属性特征的事物归为一类，并对分类进行概括和命名B.确定描述每个实体集特征的属性，并为属性命名C.确定各实体之间的联系，但不需要确定联系具有的属性D.确定联系的种类3.如果关系模式设计不当，则有可能引起数据删除异常。
这种删除异常是指__________。
A.两个事务同时对同一个关系进行删除而造成数据库不一致B.由于删除关系中的元组而造成有用信息无法作为一个元组在数据库中存在C.未经授权的用户对关系进行了删除D.如果删除操作违反了完整性约束条件则会被拒绝4.下列不属于数据库物理设计内容的是__________。
A.确定数据库文件存磁盘上的物理存储位置B.确定数据库文件的结构和具体实现细节C.确定索引字段和索引类型D、在进行数据库物理设计时要考虑空间利用率、数据访问效率5.下列关于索引的说法巾，错误的是__________。
A.索引是典型的空间换取时间的方法，因此在设计索引时要在空间与时间两者之间进行权衡B.建立聚集索引时，数据库管理系统会按照聚集索引键值对数据进行排序C.聚集索引的键值不能重复D.当经常进行范围查询时，在范围列上建立索引可以提高该类查询的效率二、填空题1.数据库概念设计的过程主要包括__________、__________ 、__________ 、__________、__________和__________。
2.在数据分布设计中，垂直划分是将一张基本表划分为多张子表，每张子表必须包含基本表的__________。
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单选题1.建立数据字典的时机是( )。
A.需求分析阶段B.数据库物理设计阶段C.数据库实施D.概念结构设计阶段答案: A2.1级封锁协议加上T要读取的数据R加S锁，这是( )。
A.3级封锁协议B.4级封锁协议C.2级封锁协议D.1级封锁协议答案: C3.学生社团可以接纳多名学生参加，但每个学生只能参加一个社团，从社团到学生之间的联系类型是学生社团可以接纳多名学生参加，但每个学生只能参加一个社团，从社团到学生之间的联系类型是( )。
A.多对多B.一对一C.多对一D.一对多答案: D4.在SELECT语句中使用GROUP BY SNO时，SNO必须（）。
A.在WHERE中出现B.在FROM中出现C.在SELECT中出现D.在HAVING中出现答案: C5.数据库系统中的数据模型通常由（）三部分组成。
A.数据结构、数据操作和完整性约束B.数据定义、数据操作和安全性约束C.数据结构、数据管理和数据保护D.数据定义、数据管理和运行控制答案: A6.在数据库系统阶段，数据( )。
A.具有物理独立性，没有逻辑独立性B.具有逻辑独立性，没有物理独立性C.独立性差D.具有高度的物理独立性和一定程度的逻辑独立性答案: D7.数据库系统的体系结构是( )。
A.两级模式结构和一级映象B.三级模式结构和一级映象C.三级模式结构和两级映象D.三级模式结构和三级映象答案: C8.SQL Server是一个基于( )。
A.层次模型的DBMSB.网状模型的DBMSC.关系模型的应用程序D.关系模型的DBMS答案: D9.关于数据库系统三级模式的说法，下列选项中正确的是( )。
A.外模式、概念模式、内模式都只有一个B.外模式有多个，概念模式和内模式只有一个C.模式只有一个，概念模式和内模式有多个D.三个模式中，只有概念模式才是真正存在的答案: B10.SQL对应的中文名称为( )。
A.结构化定义语言B.结构化控制语言C.结构化查询语言D.结构化操纵语言答案: C11.下列实体类型的联系中，属于多对多联系的是( )。
A.学生与课程之间的联系B.学校与教师之间的联系C.商品条形码与商品之间的联系D.班级与班长之间的联系答案: A12.概念结构设计阶段得到的结果是( )。
A.数据字典描述的数据需求B.E-R图表示的概念模型C.某个DBMS所支持的数据模型D.包括存储结构和存取方法的物理结构答案: B13.关系数据库规范化是为了解决关系数据库中( )问题而引入的。
A.插入、删除和数据冗余B.提高查询速度C.减少数据操作的复杂性D.保证数据的安全性和完整性答案: A14.如果事务T获得了数据项Q上的排它锁，则T对Q( )。
A.只能读不能写B.只能写不能读C.既可读又可写D.不能读不能写答案: C15.( )是长期存储在计算机内的有组织，可共享的数据集合。
A.数据库管理系统B.数据库系统C.数据库D.文件组织答案: C16.在数据库系统中，网状模型具有的特征是( )。
①允许有一个以上的结点没有双亲②有且仅有一个结点无双亲③根以外的结点有且仅有一个双亲④一个结点可以有多个双亲A.①和③B.②和③C.①和④D.②和④答案: C17.数据库系统不仅包括数据库本身，还要包括相应的硬件，软件和( )。
A.数据库管理系统B.数据库应用系统C.相关的计算机系统D.各类相关人员答案: D18.下列有关数据库恢复的说法中，不正确的是( )。
A.应定期将数据库做成档案文件B.在进行事务处理过程时数据库更新的全部内容写入日志文件C.发生故障时用当时数据内容和档案文件更新前的映象，将文件恢复到最近的检查点文件状态D.数据库恢复还可用最新的档案文件和日志文件的更新映象，将文件恢复到最新的检查点文件状态答案: C19.五种基本关系代数运算是( )。
A.∪，-，×，π和σB.∪，-，∞，π和σC.∪，∩，×，π和σD.∪，∩，∞，π和σ答案: A20.数据库中只存放视图的( )。
A.操作B.对应的数据C.定义D.限制答案: C21.从关系中挑选出指定的属性组成新关系的运算称为( )。
A.选择运算B.投影运算C.连接运算D.交运算答案: B多选题1.设计概念结构通常用的四类方法是( )。
A.自顶向下B.自底向上C.逐步扩张D.混合策略答案: A, B, C, D2.需求分析阶段主要任务是对数据库应用系统所要处理的对象进行全面的了解，收集用户对数据库的，( )并以数据流程图和数据字典等书面形式确定下来。
A.信息需求B.处理需求C.安全性需求D.完整性需求答案: A, B, C3.数据定义语言能够定义的对象有（）。
A.数据库B.基本表C.存储过程D.索引答案: A, B, C, D4.在下面给出的内容中，属于DBA职责的是( )。
A.定义概念模式B.修改模式结构C.编写应用程序D.编写完整性规则答案: A, B, D5.关系代数运算中，传统的集合运算有( )。
A.并B.差C.交D.笛卡尔积答案: A, B, C, D6.现实世界的事物反映到人的头脑中经过思维加工成数据，这一过程要经过几个领域的，它们是（）。
A.现实世界B.虚拟世界C.信息世界D.计算机世界答案: A, C, D7.按事务对数据对象的封锁程度来分，封锁的基本类型有( )。
A.排它锁B.共享锁C.物理锁D.系统锁答案: A, B8.实体之间的联系可抽象为( )。
A.1:1B.1:3C.1:nD.n:m答案: A, C, D9.SELECT语句中( )语句为必选子句，而其他子句为任选子句。
A.FROMB.WHEREC.SELECTD.GROUP BY答案: A, C10.下述关于数据库系统的叙述中，错误的是( )。
A.数据库系统减少了数据冗余B.数据库系统避免了数据冗余C.数据库系统中数据的一致性是指数据类型一致D.数据库系统比文件系统能管理更多的数据答案: B, C, D11.数据处理是指对数据的( )和传播等工作。
A.收集B.组织C.整理D.加工答案: A, B, C, D12.手工管理阶段的特点是( )。
A.数据不保存B.没有文件的概念C.数据是面向应用的D.没有对数据进行管理的软件系统答案: A, B, C, D13.事务具有( )等特性。
A.原子性B.一致性C.隔离性D.持续性答案: A, B, C, D14.SQL的主要组成部分有( )。
A.数据定义语言B.数据操纵语言C.数据控制语言D.嵌入式SQL答案: A, B, C15.数据模型是由（）三部分组成的。
A.数据B.数据结构C.数据操作D.完整性约束答案: B, C, D16.数据库体系结构按照( )三级结构进行组织。
A.模式B.外模式C.内模式D.实际模式答案: A, B, C17.数据操作语言应具备的基本功能包括( )。
A.向数据库中插入数据B.对数据库在数据排序C.描述数据库的访问控制D.删除数据库中某些数据答案: A, B, D18.数据库管理员的职责包括( )。
A.维护数据库B.设计子模式C.管理数据库D.定义数据库结构答案: A, B, C, D19.下列有关数据库的恢复的说法中，正确的是( )。
A.应定期将数据库做成档案文件B.在进行事务处理过程时数据库更新的全部内容写入日志文件C.发生故障时用当时数据内容和档案文件更新前的映象，将文件恢复到最近的检查点文件状态D.数据库恢复，还可用最新的档案文件和日志文件的更新映象，将文件恢复到最新的检查点文件状态答案: A, B, D20.下列是数据库系统的组成部分的是( )。
A.开发和管理数据库系统的人员B.数据库C.DBMSD.应用开发工具软件答案: A, B, C, D21.在C/S结构中，( )处于客户机上。
A.用户操作层B.数据存储层C.业务处理层D.界面表示层答案: C, D22.DBMS的主要功能有( ) 。
A.数据库定义B.数据库操纵C.数据库的运行管理D.数据库的保护答案: A, B, C, D23.SQL提供的主要基本数据类型有（）。
A.数值型B.字符型C.位串型D.日期型答案: A, B, C, D24.下列说法中，错误的是( )。
A.多对多的联系总是可以转换成两个一对多的联系B.ACCESS是数据库管理系统C.数据的三种范畴包括现实世界阶段、虚拟世界阶段、信息世界阶段D.我们通常所说的数据仓库就是指数据仓库答案: B, C, D判断题1.数据更新语言是DML的一部分，它允许数据库用户在RDB中进行数据的改变。
A.错误B.正确答案: B2.一个数据库只有一个概念模式，它是数据库系统三级模式结构的中间层。
A.错误B.正确答案: B3.数据模式与数据模型之间没有联系。
A.错误B.正确答案: A4.人们利用数据仓库的主要目的是进行日常事务处理，对数据仓库的主要操作是数据查询。
A.错误B.正确答案: B5.数据库管理系统建立在操作系统的基础上，对数据库进行统一的管理和控制。
A.错误B.正确答案: B6.因为视图自身并不占有存储空间，所以视图不是数据库对象。
A.错误B.正确答案: A7.数据管理的主要任务是对数据进行变换、抽取和运算，以得到更有用的数据。
A.错误B.正确答案: A8.SQL可以独立完成数据库生命周期中的全部活动，包括创建数据库、录入数据以及对数据库进行查询、更新、维护和安全控制等一系列操作。
B.正确答案: B9.数据库是一个长期存储在计算机内、随意组织的、不可共享的、分散管理的数据集合。
A.错误B.正确答案: A10.根据实体完整性规则，用户只要定义了某一个关系的外键，系统就会控制外键的值要么为空，要么等于被参照关系中某一个主键的值。
A.错误B.正确答案: A11.事务既可以并行调度，又可以串行调度，都可以保证执行结果的准确性。
A.错误B.正确答案: A12.最常用的表示数据模型的方法是实体—联系方法。
A.错误B.正确答案: B13.物理数据库中存放按一定的数据模型组织并实际存储的所有应用需要的工作数据。
A.错误B.正确14.数据结构是数据模型最基本的组成部分，规定了数据模型的静态特性。
A.错误B.正确答案: B15.尽管数据类型不同，但数据表示形式、存储方式及数据能进行的操作运算是相同的。
A.错误B.正确答案: A16.关系模型中主关键字或是外部关键字的属性值可以为空。
A.错误B.正确答案: A17.在关系模型中，实体以及实体间的联系都是用关系来表示的。
A.错误B.正确答案: B18.非等值连接是指连接运算符为除“<>”之外的其他运算符的连接。
A.错误B.正确答案: A19.索引可以保证数据的唯一性。
B.正确答案: A20.使用谓词ANY或ALL时必须与比较符配合使用。
A.错误B.正确答案: B。