2023年研究生类研究生管理科学入学考试(GMAT)参考历年高频考题带答案难题附详解

2023年研究生类研究生管理科学入学考试(GMAT)参考历年高频考题带答案难题附详解（图片大小可自由调整）第1卷一.历年考点试题黑钻版(共50题)1.Howmanyfactorsof60aregreaterthan?A.TwelveB.NineC.EightD.SevenE.Six2.Amanufacturerofworkstationsforcomputer-aideddesignseekstoincreasesalestoitsmostimportantcorporatecustomers.Itsstrategyistopublishverylowlistpricesforworkstationsinordertogenerateinterestamongthebuyersforthosecorporations.

Whichofthefollowing,ifcharacteristicofthemarketplace,wouldtendtocausethemanufacturer'sstrategytofail?______A.Theproposedlistpriceswouldseemlowtoatypicalbuyerforthemanufacturer'smostimportantcorporatecustomers.B.Thecapabilitiesofworkstationssuitableforgivenjobsarenotsignificantlydifferentamongvariousmanufacturers.C.Themanufacturer'smostimportantcorporatecustomersemployasbuyerspersonswhoareveryknowledgeableaboutpricesforworkstationsforcustomer-aideddesign.D.Customersdiffersignificantlyinthepercentageofresourcestheycandevotetocomputerworkstations.E.Buyersforcorporationsthatpurchaseworkstationsforcomputer-aideddesignreceivebonusesfornegotiatinglargediscountsfromthelistprice.3.A事件发生概率为0.6，B事件发生概率为0.5，问A，B都不发生的最大概率?4.Thecommissionerofaprofessionalsportsleaguedictatedthatteamscouldnotputplayersonthefieldwhohadagreaterthan20percentchanceofsufferingacareer-endingspinalinjuryduringcompetition.Thecommissionerjustifiedthisdecisionasawaytoprotectplayersfrominjurywhileprotectingtheleaguefromlawsuits.

Whichofthefollowing,iftrue,wouldmostunderminetheeffectivenessofthecommissioner'snewpolicy?A.Spinalinjuriescanresultinparalysis,lossoffinemotorskills,andevendeath.B.Thepreviousyear,morethansevenplayersintheleaguesufferedcareer-endingspinalinjuries.C.Theplayers'unionagreesthattheriskofinjuryisaninevitablepartofplayingthegameataprofessionallevel.D.Thereisnoscientificallyvalidmethodfordeterminingthelikelihoodofanyplayersufferingacareer-endingspinalinjuryatanygiventime.E.Playersbarredfromplayingbecauseofthisnewregulationwillbeentitledtocompensationforlostwagesataleveldeterminedbythecommissioner'soffice.5.Thepubliciswellawarethathighbloodcholesterollevelsraisetheriskofstrokecausedbybloodclots.Butarecentreportconcludesthatpeoplewithlowbloodcholesterollevelsareatincreasedriskoftheotherlethaltypeofstroke-cerebralhemorrhage,causedwhenabrainarterybursts.Thereportsuggeststhatbecausebloodcholesterolplaysavitalroleinmaintainingcellmembranes,lowbloodcholesterolweakensarterywalls,makingthempronetorupture.Theconclusionthussupportsalong-standingcontentionbyJapaneseresearchersthatWesterndietsbetterprotectagainstcerebralhemorrhagethandonon-Westerndiets.

Theargumentisbasedonwhichoneofthefollowingassumptions?A.Westerndietsarehealthierthannon-Westerndiets.B.Westerndietsresultinhigherbloodcholesterollevelsthandonon-Westerndiets.C.Highbloodcholesterollevelsprecludetheweakeningofarterywalls.D.Cerebralhemorrhagesaremoredangerousthanstrokescausedbybloodclots.E.Peoplewhohavelowbloodpressureareatincreasedriskofcerebralhemorrhage.6.Normally,thepinealglandgovernsaperson'ssleep-wakecyclebysecretingmelatonininresponsetothedailycycleoflightanddarknessasdetectedbytheeye.Nonetheless,manypeoplewhoaretotallyblindduetolesionsinthevisualcortexofthebraineasilymaintaina24-hoursleep-wakecycle.Sotheneuralpathwaybywhichthepinealglandreceivesinformationfromtheeyeprobablydoesnotpassthroughthevisualcortex.

Forpurposesofevaluatingtheargumentitwouldbemostusefultoestablishwhichofthefollowing?A.Whethermelatoninsupplementshelppeoplewhohavedifficultymaintaininga24-hoursleepcycletoestablishsuchapatternB.Whetherthemelatoninlevelsofmosttotallyblindpeoplewhosuccessfullymaintaina24-hoursleep-wakecyclechangeinresponsetochangesinexposuretolightanddarknessC.WhethermelatoninistheonlysubstancesecretedbythepinealglandD.Whethermostpeoplewhodonothavea24-hoursleep-wakecycleneverthelesshaveacycleofconsistentdurationE.Whetherthereareanypeoplewithnormalvisionwhosemelatoninlevelsrespondabnormallytoperiodsoflightanddarkness7.Anewlawgivesownershipofpatents—documentsprovidingexclusiverighttomakeandsellaninvention—touniversities,notthegovernment,whenthosepatentsresultfromgovernment-sponsoreduniversityresearch.AdministratorsatLogosUniversityplantosellanypatentstheyacquiretocorporationsinordertofundprogramstoimproveundergraduateteaching.

Whichofthefollowing,iftrue,wouldcastthemostdoubtontheviabilityofthecollegeadministrators'plandescribedabove?A.Profit-makingcorporationsinterestedindevelopingproductsbasedonpatentsheldbyuniversitiesarelikelytotrytoserveasexclusivesponsorsofongoinguniversityresearchprojects.B.Corporatesponsorsofresearchinuniversityfacilitiesareentitledtotaxcreditsundernewfederaltax-codeguidelines.C.ResearchscientistsatLogosUniversityhavefewornoteachingresponsibilitiesandparticipatelittleifatallintheundergraduateprogramsintheirfield.D.Government-sponsoredresearchconductedatLogosUniversityforthemostpartduplicatesresearchalreadycompletedbyseveralprofitmakingcorporations.E.LogosUniversityisunlikelytoattractcorporatesponsorshipofitsscientificresearch.8.Paulisstanding180yardsduenorthofpointP,Frannyisstanding240yardsduewestofpointP.WhatistheshortestdistancebetweenFrannyandPaul?A.60yardsB.300yardsC.420yardsD.900yardsE.9,000yards9.Amutualfundhavingbillionsofdollarsinassetswilltypicallyinvestthatmoneyinhundredsofcompanies,rarelyholdingmorethanonepercentofthesharesofanyparticularcorporation.A.companies,rarelyholdingmorethanonepercentB.companies,anditisraretoholdatleastonepercentormoreC.companiesandrarelydotheyholdmorethanonepercentD.companies,sothattheyrarelyholdmorethanonepercentE.companies;rarelydotheyholdonepercentormore10.Overthepasttenyearscultivatedsunflowershavebecomeamajorcommercialcrop,secondonlytosoybeansasasourceofvegetableoil.A.secondonlytosoybeansasasourceofvegetableoilB.secondinimportancetosoybeansonlyasasourceofvegetableoilC.beingsecondinimportanceonlytosoybeansasasourceofvegetableoilD.which,asasourceofvegetableoil,isonlysecondtosoybeansE.asasourceofvegetableoilonlysecondtosoybeans11.WhichofthefollowingisclosesttoA.20B.40C.60D.80E.10012.一个龙头灌水的速度是另一个的1.5倍，两个一起灌要四小时，问效率高的单独灌要多少小时?13.Airplanemanufacturer:IobjecttoyourcharacterizationofourX-387jetsasdangerous.NoX-387incommercialusehasevercrashedorevenhadaseriousmalfunction.

Airlineregulator:TheproblemwiththeX-387isnotthatit,itself,malfunctions,butthatitcreatesaturbulenceinitswakethatcancreatehazardousconditionsforaircraftinitsvicinity.

Theairlineregulatorrespondstothemanufacturerbydoingwhichofthefollowing?A.Characterizingthemanufacturer'sassertionasstemmingfromsubjectiveinterestratherthanfromobjectiveevaluationofthefacts.B.Drawingattentiontothefactthatthemanufacturer'sinterpretationoftheword"dangerous"istoonarrow.C.Invokingevidencethatthemanufacturerhasexplicitlydismissedasirrelevanttothepointatissue.D.Citingstatisticalevidencethatrefutesthemanufacturer'sclaim.E.Castingdoubtontheextentofthemanufacturer'sknowledgeofthenumberofrecentairlinedisasters.14.Aresearcherplanstoidentifyeachparticipantinacertainmedicalexperimentwithacodeconsistingofeitherasingleletterorapairofdistinctletterswritteninalphabeticalorder.Whatistheleastnumberoflettersthatcanbeusedifthereare12participants,andeachparticipantistoreceiveadifferentcode?A.4B.5C.6D.7E.815.Manypeoplesufferanallergicreactiontocertainsulfites,includingthosethatarecommonlyaddedtowineaspreservatives.However,sincethereareseveralwinemakerswhoaddsulfitestononeofthewinestheyproduce,peoplewhowouldliketodrinkwinebutareallergictosulfitescandrinkwinesproducedbythesewinemakerswithoutriskinganallergicreactiontosulfites.

Whichofthefollowingisanassumptiononwhichtheargumentdepends?______A.Thesewinemakershavebeenabletoduplicatethepreservativeeffectproducedbyaddingsulfitesbymeansthatdonotinvolveaddinganypotentiallyallergenicsubstancestotheirwine.B.Notallformsofsulfiteareequallylikelytoproducetheallergicreactions.C.Wineistheonlybeveragetowhichsulfitesarecommonlyadded.D.Apartfromsulfites,therearenosubstancescommonlypresentinwinethatgiverisetoanallergicreaction.E.Sulfitesarenotnaturallypresentinthewinesproducedbythesewinemakersinamountslargeenoughtoproduceanallergicreactioninsomeonewhodrinksthesewines.16.SpringfieldFireCommissioner:thevastmajorityoffalsefirealarmsareprankcallsmadeanonymouslyfromfirealarmboxesonstreetcorners.Sincevirtuallyeveryonehasaccesstoaprivatetelephone,thesealarmboxeshaveoutlivedtheirusefulness.Therefore,weproposetoremovetheboxes.Removingtheboxeswillreducethenumberofprankcallswithouthamperingpeople'sabilitytoreportafire.

Whichofthefollowing,iftrue,moststronglysupportstheclaimthattheproposal,ifcarriedout,willhavetheannouncedeffect?______A.Thefiredepartmenttracesallalarmcallsmadefromprivatetelephonesandrecordswheretheycamefrom.B.MaintainingthefirealarmboxescostsSpringfieldapproximatelyfivemilliondollarsannually.C.Atelephonecallcanprovidethefiredepartmentwithmoreinformationaboutthenatureandsizeofafirethancananalarmplacedfromanalarmbox.D.Respondingtofalsealarmssignificantlyreducesthefiredepartment'scapacityforrespondingtofires.E.Onanygivenday,asignificantpercentageofthepublictelephonesinSpringfieldareoutofservice.17.MagazinePublisher:Ourmagazinedoesnothavealiberalbias.Itistruethatwhenabookreviewwehadcommissionedlastyearturnedouttoexpressdistinctlyconservativeviews,wedidnotpublishituntilwehadalsoobtainedasecondreviewthattookastronglyliberalposition.Clearly,however,ouractionsdemonstratenotabiasinfavorofliberalviewsbutratheracommitmenttoabalancedpresentationofdiverseopinions.

Determiningwhichofthefollowingwouldbemostusefulinevaluatingthecogencyofthemagazinepublisher'sresponse?______A.WhetheranyothermagazinesinwhichthebookwasreviewedcarriedmorethanonereviewofthebookB.WhetherthemagazinepublishesunsolicitedbookreviewsaswellasthosethatithascommissionedC.WhetherintheeventthatafirstreviewcommissionedbythemagazinetakesaclearlyliberalpositionthemagazinewouldmakeanyeffortstoobtainfurtherreviewsD.WhetherthebookthatwasthesubjectofthetworeviewswasitselfwrittenfromaclearlyconservativeoraclearlyliberalpointofviewE.Whethermostofthereadersofthemagazineregularlyreadthebookreviewsthatthemagazinepublishes18.Previously,Autocodesignedallofitscarsitselfandthencontractedwithspecializedpartssupplierstobuildpartsaccordingtoitsspecifications.Nowitplanstoincludeitssuppliersindesigningthepartstheyaretobuild.SincemanypartssuppliershavemoredesignerswithspecializedexperiencethanAutocohas,Autocoexpectsthisshifttoreducetheoveralltimeandcostofthedesignofitsnextnewcar.

Whichofthefollowing,iftrue,moststronglysupportsAutoco'sexpectation?A.Whensuppliersprovidetheirowndesigns,Autocooftenneedstomodifyitsoveralldesign.B.InordertoprovidedesignsforAutoco,severalofthepartssupplierswillhavetoaddtotheirexistingstaffsofdesigners.C.Partsandservicesprovidedbyoutsidesuppliersaccountformorethan50percentofAutoco'stotalcosts.D.WhensuppliersbuiltpartsaccordingtospecificationsprovidedbyAutoco,thesupplierscompetedtowincontracts.E.MostofAutoco'ssuppliershaveonhandawiderangeofpreviouslypreparedpartsdesignsthatcanreadilybemodifiedforanewcar.19.Overathree-weekperiod,thepriceofanounceofgoldincreasedby25%inthefirstweek,decreasedby20%inthefollowingweek,andincreasedby5%inthethirdweek.IfthepriceofgoldwasGdollarsperounceatthebeginningofthethreeweeks,whatwastheprice,intermsofG,attheendofthethreeweeks?A.0.95GB.GC.1.05GD.1.1GE.1.15G20.Civiltrialsofteninvolvegreatcomplexitiesthatarebeyondthecapacitiesofjurorstounderstand.Asaresult,jurors'decisionsinsuchtrialsarefrequentlyincorrect.Justicewouldthereforebebetterservedifthemorecomplextrialsweredecidedbyjudgesratherthanjuries.

Theargumentabovedependsonwhichofthefollowingassumptions?A.Amajorityofciviltrialsinvolvecomplexitiesthatjurorsarenotcapableofunderstanding.B.Thejudgeswhowoulddecidecomplexciviltrialswouldbebetterabletounderstandthecomplexitiesofthosetrialsthanjurorsare.C.Thejudgeswhowouldpresideoverciviltrialswoulddisallowthemostcomplexsortsofevidencefrombeingintroducedintothosetrials.D.Jurors'decisionsarefrequentlyincorrecteveninthoseciviltrialsthatdonotinvolvegreatcomplexities.E.Thesolereasoninfavorofhavingjuriesdecideciviltrialsisthesuppositionthattheirdecisionswillalmostalwaysbecorrect.21.Apersonisstandingonastaircase.

He

walksclown4steps,up3steps,down6steps,up2steps,up9steps,anddown2steps.Whereishestandinginrelationtothesteponwhichhestarted?A.2stepsaboveB.1stepaboveC.thesameplaceD.1stepbelowE.2stepsbelow22.Whatisthevalueof5x2-1.9x-3.7forx=-0.3?A.-4.72B.-3.82C.-3.58D.-2.68E.0.5723.Forpositiveintegersaandb,theremainderwhenaisdividedbybisequaltotheremainderwhenbisdividedbya.Whichofthefollowingcouldbeavalueofab?

Ⅰ.24

Ⅱ.30

Ⅲ.36A.ⅡonlyB.ⅢonlyC.ⅠandⅡonlyD.ⅡandⅢonlyE.Ⅰ,Ⅱ,andⅢ24.Theexpressionn!isdefinedastheproductoftheintegersfrom1throughn.Ifpistheproductoftheintegersfrom100through299andqistheproductoftheintegersfrom200through299,whichofthefollowingisequalto?

A.99!

B.199!

C.

D.

E.25.有两人为三个房间送餐，甲送饭，乙送菜，分为三个时间段去送，每时间段一个房间，且任一时间段内不可往同一房间送，问有多少种送法?26.Itisbetterfortheenvironmentifasmuchofallpackagingaspossibleismadefrommaterialsthatarebiodegradableinlandfills.Therefore,itisalwaysachangefortheworsetoreplacepackagingmadefrompaperorcardboardwithpackagingmadefromplasticsthatarenotbiodegradableinlandfills.

Whichofthefollowing,iftrue,constitutesthestrongestobjectiontotheargumentabove?A.Thepaperandcardboardusedinpackagingareusuallynotbiodegradableinlandfills.B.Someplasticusedinpackagingisbiodegradableinlandfills.C.Inmanylandfills,asignificantproportionofspaceistakenupbymaterialsotherthandiscardedpackagingmaterials.D.Itisimpossibletoavoidentirelytheuseofpackagingmaterialsthatarenotbiodegradableinlandfills.E.Sometimes,inpackaginganitem,plasticsthatarenotbiodegradableinlandfillsarecombinedwithcardboard.27.Tanco,aleathermanufacturer,useslargequantitiesofcommonsalttopreserveanimalhides.Newenvironmentalregulationshavesignificantlyincreasedthecostofdisposingofsaltwaterthatresultsfromthisuse,and,inconsequence,Tancoisconsideringaplantousepotassiumchlorideinplaceofcommonsalt.ResearchhasshownthatTancocouldreprocesstheby-productofpotassiumchlorideusetoyieldacropfertilizer,leavingarelativelysmallvolumeofwastefordisposal.

Indeterminingtheimpactoncompanyprofitsofusingpotassiumchlorideinplaceofcommonsalt,itwouldbeimportantforTancotoresearchallofthefollowingEXCEPT:A.Whatdifference,ifany,istherebetweenthecostofthecommonsaltneededtopreserveagivenquantityofanimalhidesandthecostofthepotassiumchlorideneededtopreservethesamequantityofhides?B.Towhatextentistheequipmentinvolvedinpreservinganimalhidesusingcommonsaltsuitableforpreservinganimalhidesusingpotassiumchloride?C.Whatenvironmentalregulations,ifany,constrainthedisposalofthewastegeneratedinreprocessingtheby-productofpotassiumchloride?D.Howcloselydoesleatherthatresultswhencommonsaltisusedtopreservehidesresemblethatwhichresultswhenpotassiumchlorideisused?E.Arethechemicalpropertiesthatmakepotassiumchlorideaneffectivemeansforpreservinganimalhidesthesameasthosethatmakecommonsaltaneffectivemeansfordoingso?28.Adogenthusiasttookhometwopuppiesfromthedogshelter.Hefedoneofthepuppiessuper-premiumcanneddogfood,whilehefedtheotheragenericbrandfromthegrocerystore.Thedogfedonthegenericbrandgainedweighttwiceasfastasthedogfedthesuper-premiumbrand.Becauseofthedifferenceintheseresults,thedogenthusiastconcludedthatthegenericbrandactuallyprovidednutritionsuperiortothatofthesuper-premiumbrand.

Eachofthefollowing,iftrue,wouldweakentheevidenceforthedogenthusiast'sconclusionexceptforwhichofthefollowing?A.Adogwillsometimesgainmoreweightwheneatinginferior-qualityfoodbecausehemusteatmoreofittoobtainthenutrientsheneeds.B.Thedogswereofmixedbreedsandappearedtobedescendedfromdogsofdifferentsizes.C.Bothdogsateallofthefoodgiventothemateachserving.D.Thedogenthusiastdidnotgivethetwodogsequalamountsoftheirrespectivefoods.E.Thedogwhoreceivedthesuper-premiumdogfoodsufferedfromadigestivesystemdisorderthathinderedhisgrowth.29.Cherylpurchased5identicalhollowpinedoorsand6identicalsolidoakdoorsforthehousesheisbuilding.Theregularpriceofeachsolidoakdoorwastwicetheregularpriceofeachhollowpinedoor.However,Cherylwasgivenadiscountof25%offtheregularpriceofeachsolidoakdoor.Iftheregularpriceofeachhollowpinedoorwas$40,whatwasthetotalpriceofall11doors?A.$320B.$540C.S560D.$620E.S68030.Amarketingfirmdeterminedthat,of200householdssurveyed,80usedneitherBrandAnorBrandBsoap,60usedonlyBrandAsoap,andforeveryhouseholdthatusedbothbrandsofsoap,3usedonlyBrandBsoap.Howmanyofthe200householdssurveyedusedbothbrandsofsoap?A.15B.20C.30D.40E.4531.Duringthe1980sand1990s,theannualnumberofpeoplewhovisitedtheSordellianMountainsincreasedcontinually,andmanynewskiresortswerebuilt.Overthesameperiod,however,thenumberofvisitorstoskiresortswhowerecaughtinavalanchesdecreased,eventhoughtherewasnoreductionintheannualnumberofavalanchesintheSordellianMountains.

Whichofthefollowing,iftrueintheSordellianMountainsduringthe1980sand1990s,mosthelpstoexplainthedecrease?A.AvalanchesweremostlikelytohappenwhenalargenewsnowfallcoveredanolderlayerofSNOW.B.AvalanchesdestroyedatleastsomebuildingsintheSordellianMountainsineveryyear.C.Peopleplanningnewskislopesandotherresortfacilitiesusedincreasinglyaccurateinformationaboutwhichlocationsarelikelytobeinthepathofavalanches.D.TheaveragelengthofstayforpeoplevisitingtheSordellianMountainsincreasedslightly.E.Constructionofnewskiresortsoftenledtotheclearingofwoodedareasthathadhelpedtopreventavalanches.32.Sinceminorsshouldnotsmoke,theproposedlawprohibitingcigarettesalestominorsisreasonable.However,theproposedbanoncigarettevendingmachinesislikeinstallingaroadblocktoapprehendtheonepersoninahundredwhodriveswithoutalicense.Aroadblockstopseveryone,notjustthosewhobreakthelaw.

Theanswertowhichofthefollowingquestionswouldbemostimportantinevaluatingtheobjectionabovetoabanoncigarettevendingmachines?A.Docigarettevendingmachinesmalfunctionmorefrequentlythandofoodvendingmachines?B.Aretherecurrentlawsthatprohibitthesaletominorsofmaterialsintendedonlyforadults?C.Wouldanincreaseintaxesoncigarettesaleshelpdeterminorsfrompurchasingcigarettes?D.Wouldabanoncigarettevendingmachinesinconvenienceasignificantnumberofcigarette-buyingadults?E.Areitemsmoreexpensivewhensoldfromavendingmachinethanwhensoldinretailstores?33.Advertisements:Intoday'sworld,youmakeastatementaboutthepersonyouarebythecaryouown.ThemessageoftheSKXMach-5isunambiguous:ItsownerisDynamic,Aggressive,andSuccessful.Shouldn'tyouownanSKXMach-5?

Iftheclaimsmadeintheadvertisementaretrue,whichoneofthefollowingmustalsobetrueonthebasisofthem?A.Anyonewhoisdynamicandaggressiveisalsosuccessful.B.AnyonewhoisnotbothdynamicandsuccessfulwouldmisrepresenthimselforherselfbybeingtheownerofanSKXMach-5.C.PeoplewhobuytheSKXMach-5areusuallymoreaggressivethanpeoplewhobuyothercars.D.NocarotherthantheSKXMach-5announcesthatitsownerissuccessful.E.AlmostnoonewouldfailtorecognizethekindofpersonwhowouldchoosetoownanSKXMach-5.34.Agroupofstoremanagersmustassemble280displaysforanupcomingsale.Iftheyassemble25percentofthedisplaysduringthefirsthourand40percentoftheremainingdisplaysduringthesecondhour,howmanyofthedisplayswillnothavebeenassembledbytheendofthesecondhour?A.70B.98C.126D.168E.18235.Ifmoneyisinvestedatrpercentinterest,compoundedannually,theamountoftheinvestmentwilldoubleinapproximatelyyears.IfPat'sparentsinvested$5,000inalong-termbondthatpays8percentinterest,compoundedannually,whatwillbetheapproximatetotalamountoftheinvestment18yearslater,whenPatisreadyforcollege?A.$20,000B.$15,000C.$12,000D.$10,000E.$9,00036.Aresearcherstudyingdrugaddictsfoundthat,onaverage,theytendtomanipulateotherpeopleagreatdealmorethannoaddictsdo.Theresearcherconcludedthatpeoplewhofrequentlymanipulateotherpeoplearelikelytobecomeaddicts.

Whichofthefollowing,iftrue,mostseriouslyweakenstheresearcher'sconclusion?A.Afterbecomingaddictedtodrugs,drugaddictslearntomanipulateotherpeopleasawayofobtainingdrugs.B.Whentheyareimprisoned,drugaddictsoftenusetheirabilitytomanipulateotherpeopletoobtainbetterlivingconditions.C.Somenoaddictsmanipulateotherpeoplemorethansomeaddictsdo.D.Peoplewhoarelikelytobecomeaddictsexhibitunusualbehaviorpatternsotherthanfrequentmanipulationofotherpeople.E.Theaddictsthattheresearcherstudiedwereoftenunsuccessfulinobtainingwhattheywantedwhentheymanipulatedotherpeople.37.AcirclegraphshowshowtheMegaTechcorporationallocatesitsResearchandDevelopmentbudget:14%microphotonics;24%homeelectronics;15%foodadditives;29%geneticallymodifiedmicroorganisms;8%industriallubricants;andtheremainderforbasicastrophysics.Ifthearcofeachsectorofthegraphisproportionaltothepercentageofthebudgetitrepresents,howmanydegreesofthecircleareusedtorepresentbasicastrophysicsresearch?A.8°B.10°C.18°D.36°E.52°38.OnacertaindayittookBillthreetimesaslongtodrivefromhometoworkasittookSuetodrivefromhometowork.HowmanyKilometersdidBilldrivefromhometowork?

(1)Suedrove10kilometersfromhometowork,andtheratioofwasthesameforBillandSuethatday.

(2)TheratioofforSuethatdaywas64kilometersperhour.

A.条件(1)充分，但条件(2)不充分．B.条件(2)充分，但条件(1)不充分．C.条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．D.条件(1)充分，条件(2)也充分．E.条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．39.Inthefirsthalfofthisyear,fromJanuarytoJune,aboutthreemillionvideocassetterecordersweresold.Thisnumberisonly35percentofthetotalnumberofvideocassetterecorderssoldlastyear.Therefore,totalsalesofvideocassetterecorderswillalmostcertainlybelowerforthisyearthantheywereforlastyear.

Whichofthefollowing,iftrue,mostseriouslyweakenstheconclusionabove?A.Thetotalnumberofvideocassetterecorderssoldlastyearwaslowerthanthetotalnumbersoldintheyearbeforethat.B.Mostpeoplewhoareinterestedinowningavideocassetterecorderhavealreadypurchasedone.C.Videocassetterecordersarelessexpensivethisyearthantheywerelastyear.D.Ofthevideocassetterecorderssoldlastyear,almost60percentweresoldinJanuary.E.Typically,over70percentofthesalesofvideocassetterecordersmadeinayearoccurinthemonthsofNovemberandDecember.40.一对夫妇生孩子，每次仅生一个孩子，生男生女的概率一样，问生2男2女的概率?41.

Inthefigureabove,twosearchlightsS1andS2arelocated10,000feetapart,eachcoversanareaofradius10,000feet,andeachislocated8,000feetfromtherailroadtrack.Tothenearest1,000feet,whatisthetotallengthxoftrackspannedbythesearchlights?A.24,000B.22,000C.20,000D.16,000E.12,00042.TheclosingpriceofStockXchangedoneachtradingdaylastmonth.ThepercentchangeintheclosingpriceofStockXfromthefirottradingdaylastmonthtoeachoftheothertradingdayslastmonthwaslessthan50percent.Iftheclosingpriceonthesecondtradingdaylastmonthwas$10.00,whichofthefollowingCANNOTbetheclosingpriceonthelasttradingdaylastmonth?A.$3.00B.$9.00C.$19.00D.$24.00E.$29.0043.RecentauditsrevealedthatBanqueCard,acreditservice,haserredincalculatingtheinterestitchargesitsclients.ButBanqueCard'schiefaccountantreasonedthattheprofitsthatthecompanyshowswouldremainunaffectedbyarevisionofitsclients'creditstatementstocorrectitspreviousbillingerrors,sincejustasmanyclientshadbeenoverchargedasundercharged.

Whichofthefollowingisareasoningerrorthattheaccountantmakesinconcludingthatcorrectingitsclients'statementswouldleaveBanqueCard'sprofitsunaffected?A.RelyingonthereputationofBanqueCardasatrustworthycreditservicetomaintainthecompany'sclienteleaftertheerrorbecomeswidelyknownB.Failingto