48V及以下的二次回路在交接验收时也应作交流耐压试验。

1、正确
2、错误
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翻译训练:大学生创业

近年来大学生创业(entrepreneurship)问题越来越受到社会的关注,因为受过多年教育的大学生属于高级知识分子,他们背负着社会的种种期望。在社会经济繁荣发展的同时,大学生创业也成为新气象。现代大学生有创新精神,有对传统观念和传统行业挑战的信心和欲望,而这种创新精神也成为大学生创业的动力源泉,成为成功创业的信心基础。大学生怀揣创业梦想,努力打拼,实现自己的理想,证明自己的价值。

引起胸痛的呼吸系统疾病不包括

A、胸膜炎
B、气胸 
C、肺炎 
D、肺癌 
E、食管癌

Passage4

Questions16to20arebasedonthefollowingpassage:

Thenewglobalsatellitecommunicationssystemswillofferthreekindsservice,whichmayoverlapinmanydifferentkindsofreceivers.

VOICE.SatellitetelephoneswillbeabletomakecallsfromanywhereontheEarthtoanywhereelse.Thatcouldmakethemespeciallyusefultoremote,thirdworldvillages(someofwhichalreadyusestationarysatellitetelephones),explorersanddisaster-reliefteams.Today’smobiletelephonesdependonearth-boundtransmitters,wheretechnicalstandardsvaryfromcountrytocountry.Sobusinesstravelerscannotusetheirmobilephonesoninternationaltrips.Satellitetelephoneswouldmakethatpossible.

MESSAGING.Satellitemassagershavethesameglobalcoverageassatellitetelephones,butcarrytextalone,whichcouldbeusefulforthosewithlaptopcomputers.Equippedwithasmallscreenliketoday’spapers,satellitemassagerswillalsoreceiveshortmessages.

TRACKING.Voiceandmessagingsystemswillalsotelltheiruserswheretheyaretowithinafewhundredmeters.Combinedwiththemessagingservice,thelocationservicecouldhelprescueteamstofindstrandedadventurers,thepolicetofindstolencars,exporterstofollowtheprogressofcargoes,andhaulagecompaniestocheckthatdriversarenotdetouringthepub.America’smilitaryGlobalPositioningSystem(GPS)satellitewillprovidebetterpositioninginformationtoanyonewhohasareceiverfortheirsignals,butGPSdoesnotcarrymessages,sosuchareceivercannotbeusedonitsownfortrackingorrescue.Bythemid-1990s,GPSreceiverswillbeabletotellpeoplewheretheyaretowithin70metersanywhereintheworld,andtowithinameterorsoinareaswheretheserviceissupplementedbyground-basedtransmitter.

16.Globalsatellitecommunicationssystemswillbeusefulto.

A.laptopcomputerusers

B.remotevillages

C.disaster-reliefteams

D.allabove

17.Satellitetelephonewillmake.

A.businesstravelersusemobilephonesoninternationaltrips

B.possiblecallsfromanywhereonearthtoanywhereelse

C.explorershappy

D.allabove

18.Whichofthefollowingistrue?

A.ThepositioningprecisionofthevoicesystemisbetterthanthatofGPS.

B.ThepositioningprecisionofGPSisBetterthanthatofthevoicesystem.

C.ThepositioningprecisionofthemessagingsystemisbetterthanofGPS.

D.Thepositioningprecisionofvoicesystemisbetterthanthatofthemessagingsystem.

19.Whatcanwesayaboutthenewglobalsatellitecommunicationssystems?

A.Theyarewidelyused.

B.Theyareveryhelpful.

C.Theyarecostly.

D.BothAandB.

20.Whichofthefollowingmaybethebesttitleforthepassage?

A.GlobalSatelliteCommunications

B.NewVoiceandMessagingSystem

C.NewGenerationSatellite

D.AlwaysinTouch

Thecompositionscontainedsofewerrorsthattheteachergotthestudents_____oneanother’spapers.

A、correct
B、tocorrect
C、correcting
D、tobecorrecting

PartIIICloze

Directions:Therearetwentyblanksinthefollowingpassage.Foreachblanktherearefourchoices.ChoosetheonethatbestfitsintothepassageandthenmarksyouranswerontheAnswerSheet.

Beforethe20thcenturythehorseprovideddaytodaytransportationintheUnitedStates.Trainswereusedonlyforlong-distancetransportation.

Todaythecaristhemostpopular61oftransportationinalloftheUnitedStates.Ithascompletely62thehorseasameansofeverydaytransportation.Americansusetheircarsfor6390percentofallpersonal64.

MostAmericansareableto65cars.

Theaveragepriceofa66madecarwas1050in1950,1740in1960andupto1750671975.DuringthisperiodAmericancarmanufacturerssetabout68theirproductsandworkefficiency.

Asaresult,theyearlyincomeofthe69familyincreasedfrom1950to197570thanthepriceofcars.Forthisreason71anewcartakesasmaller72ofafamily’stotalearningstoday.

In195173ittook8.1monthsofanaveragefamily’s74tobuyanewcar.In1962anewcar758.3ofafamily’sannualearnings.By1975itonlytook4.7576income.Inaddition,the1975carsweretechnically77tomodelsfrompreviousyears.

The78oftheautomobileextendsthroughouttheeconomy79thecarissoimportanttoAmericans.Americansspendmoremoneyto80theircarsrunningthanonanyotheritem.

61.A.kindsB.meansC.meanD.types

62.A.deniedB.reproducedC.replacedD.ridiculed

63.A.hardlyB.nearlyC.certainlyD.somehow

64.A.tripB.worksC.businessD.travel

65.A.buyB.sellC.raceD.see

66.A.quicklyB.regularlyC.rapidlyD.recently

67.A.onB.inC.behindD.about

68.A.raisingB.makingC.reducingD.improving

69.A.unusualB.interestedC.averageD.biggest

70.A.slowestB.equalC.fasterD.lessthan

71.A.bringingB.obtainC.boughtD.purchasing

72.A.partB.halfC.numberD.side

73.A.clearlyB.proportionallyC.percentageD.suddenly

74.A.incomeB.workC.plansD.debts

75.A.usedB.spendC.costD.needed

76.A.months’B.dollarsC.familyD.year

77.A.famousB.superiorC.fastestD.purchasing

78.A.runningB.noticeC.influenceD.discussion

79.A.thenB.asC.soD.which

80.A.startB.leaveC.keepD.repair

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