科技英语语法-知到答案、智慧树答案

科技英语语法-知到答案、智慧树答案第一章单元测试1A:错B:对:】2Inthiscase,thefailurepointcorrespondstoafactorofsafetyof1.A:B:C:D::】3A:对B:错:】4A:20partpermillionsB:20partspermillionC:20partpermillionD:20partspermillions:20partspermillion】5andA:3B:4C:2D:1:3】6/Thisissuch____sensitivevoltmeterthatitcanmeasuretheslightestchangesinvoltage.A:aB:anC:theD:/:a】7Itisimportantforthereadertolearnthebasicconceptswell,____thediscussionoflatertopicswillbedifficulttounderstand.A:orB:butC:andD:for:or】8_Thesetransistorcircuitscanamplifyvoltagesignalswithminimumwaveformdistortion.______。A:B:C:D::】9Bothmandnarethereforeeven,toourchoiceofmandn.A:contradictB:contraryC:contradictionD:contrarily:contrary】第二章单元测试1Theprocessofmeasurement,themostfundamentaloperationinphysics,willbediscussedbrieflyinthischapter.A:willbediscussedbrieflyB:themostfundamentaloperationinphysicsC:thischapterD:measurement:themostfundamentaloperationinphysics】2—canbefoundinmanyfruits,vegetablesandbeans.A:alsoknownasfolateC:canbefoundinmanyfruits,vegetablesandbeans:alsoknownasfolate】3makeuseofA:...用B:...C::】4Theoxygenequipmentmadeitpossibleforclimberstorestveryhighaltitudes.A:onB:inC:atD:as:at】5:】第三章单元测试1A:B:C:D::】2Computersarepowerfultoolswhichperformfast,accuratecalculationsoverhugesetsofdata.A:B:C:D::】3Itisshownthataconcentrationonthepreservationofroutingabilitiesmightdamagethepreservationofcommunitystructure,andviceversa.A:错B:对:】4Thegrainoutputoflastyearinourprovincewas20overthatof1990.199020A:对B:错:】5Theearthis49timesthesizeofthemoon.50A:对B:错:】6Convection()isa______simplerphysicalprocessthanconduction.A:moreB:manyC:farD:farther:far】7A:muchwellB:wellC:morebetterD:considerablybetter:considerablybetter】第四章单元测试1Thiscompanywasthefirst____portableradiosaswellascassettetaperecordersintheworld.A:producedB:producingC:toproduceD:havingproduced:toproduce】2A:notmakeB:nottomakeC:notmakingD:nortomake:nottomake】3Ifelldownandbrokethreeofmyteeth.IwonderhowmanytimesIhavetocomehereandgetmyfalseteethA:fixedB:tofixC:fixingD:fix:fixed】4A:HavingseenB:SeeingC:Beingseen:Seeing】5Markoftenattemptstoescape____wheneverhebreakstrafficregulations.A:havingbeenfinedB:beingfinedC:tohavebeenfinedD:tobefined:beingfined】6Itisourpurposeinthissectiontointroducethebasicmeaningofthesolutionofadifferentialequation.A:B:C:D::】7Alamp____toavoltagesourceformsasimplecircuit.A:connectedB:connectingC:toconnectD:connect:connected】第五章单元测试1Theshockingnewsmadmerealize______terribleproblemswewouldface.A:thatB:howC:whatD:why:what】2Itisstillunderdiscussion______theoldbusstationshouldbereplacedwithamodernhotelornot.A:whenB:whichC:whereD:whether:whether】3A:whereB:thatC:whenD:why:】4Beforeaproblemcanbesolved,itmustbeobvious______theproblemitselfis.A:whatB:thatC:whyD:which:what】5A:howB:whyC:whatD:who:how】6Abodyvelocityisnotconstantissaidtobeaccelerated.A:whichB:whoseC:whoD:that:whose】7Small__________electronsare,theyplayanimportantroleintheformationofelectriccurrent.A:eventhoughB:nomatterhowC:asD:while:as】第六章单元测试1A:wereB:wouldbeC:amD:was:were】2A:didnotriseB:wouldnotriseC:doesnotriseD:willnotrise:didnotrise】3A:willbegoingB:mustC:wereD:are:were】4A:willhaveseenB:willseeC:hadseenD:couldsee:hadseen】5Ifyouhadwantedtobuyarecord,what________?A:wouldyoubebuyingB:hadyouboughtC:wouldyoubuyD:wouldyouhavebought:wouldyouhavebought】第七章单元测试1It_____MikeandMarywhohelpedtheoldmanseveraldaysago.A:hadbeenB:wasC:wereD:are:was】2Itwasnotuntil1920_____regularradiobroadcastsbegan.A:whenB:thatC:sinceD:which:that】3Shesaidshewouldgoandshe________go.A:reallyB:wouldC:did:did】4A:that;whichB:that;whatC:what;thatD:which;that:what;that】5A:itwereB:therewasC:itwasD:therewere:itwas】第八章单元测试1Theboywantedtoridehisbikeinthestreet,buthismothertoldhim_____.A:donottoB:notdoitC:nottoD:nottodo:notto】2Thetraditionalgoalofscienceistodiscoverhowthingsare,nothowtheyought____.A:havebeenB:beC:tobeD:to:tobe】3A:donottoB:notdoitC:nottodoD:notto:notto】4.---Ihopethechildrenwon’ttouchthedog.----I’vewarnedthem____.A:notB:nottoC:notdoD:nottouch:notto】5SomestudentsaregoingtoChinainsummervacation,and____.A:somegoingtoAmericaB:sometoAmericaC:someAmericaD:somearetoAmerica:sometoAmerica】第九章单元测试1A:littleheardheB:alittleheardheC:littledidhehearD:alittledidhehear:littledidhehear】2A:WhatdoestimeflyB:.WhattimefliesC:HowdoestimeflyD:Howtimeflies:Howtimeflies】3A:notjustwastakenawayhisjobinthelabB:notonlywashisjobinthelabtakenawayC:notmerelyhisjobinthelabwastakenawayD:notwashisjobinthelabtakenaway:notonlywashisjobinthelabtakenaway】4A:TherethebellgoesB:TheregoesthebellC:GoesthebellthereD:Theredoesthebellgo:Theregoesthebell】5Ithinkthisisthefirsttimethatwehavemet.anywhere.A:NeverbeforehaveweseeneachotherB:Beforehavewen