GRE考试模拟试题GRE北美试题.docx

GRE考试模拟试题GRE北美试题.docx

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GRE考试模拟试题GRE北美试题

GRE考试模拟试题GRE北美试题

SECTION5　　Questions1-3　　Sixemployees-L,M,N,O,P,andR-arebeingassignedtooffices,eachofwhichcanaccommodatetwopersonsandnomorethantwo.Eachpersonmustbeassignedtoexactlyoneofficeandmustbeassignedtothatofficeeitheraloneorelsetogetherwithoneothermemberofthegroupofsix.Enoughofficesareavailabletopermitanypossibleassignmentofgroupmemberstooffices,butthefollowingrestrictionsmustbeobserved:

　　McannotshareanofficewithN.　　NcannotshareanofficewithO.　　PandRmustshareanofficetogether.　　1.Whichofthefollowingpairsofemployeescanbeassignedtooneofficetogether?

　　（A）LandO（B）LandR（C）NandO　　（D）MandN（E）PandM　　2.IfNisassignedtoanofficealone,whichofthefollowingmustbetrue?

　　（A）NooneotherthanNisassignedtoanofficealone.　　（B）LsharesanofficewithO.　　（C）Misassignedtoanofficealone.　　（D）Thegroupoccupieseither4or5offices.　　（E）Thegroupoccupieseither3or6offices.　　3.IfPandRaretheonlyoneswhosharesanoffice,howmanyofficesaretheminimumthatcanaccom-modatethegroup?

　　（A）2（B）3（C）4（D）5（E）6　　4.DuringthemonthofJulyinCityX,thehumiditywasalways80percentofhigherwheneverthetem-peraturewas75°Forhigher.Temperaturesthatmonthrangedfrom65°to95°F.　　Ifthestatementsinthepassageabovearetrue,whichofthefollowingCANNOTbeanaccuratereportofatemperatureandhumidityreadingforCityXinJuly?

　　（A）77°F81%（B）76°F,80%　　（C）75°F79%（D）74°F,78%　　（E）73°F,77%　　5.Anyonewhohasownedacarknowsthatsavingmoneyintheshortrunbyskimpingonrelativelyminorrepairsandroutinemaintenancewillproveverycostlyinthelongrun.However,thisbasictruthisoftenforgottenbythosewhocallforreducedgovernmentspendingonsocialprograms.　　WhichofthefollowingisNOTimpliedbytheanal-ogyaboveasapointofcomparison?

　　（A）Moneythatisspentonrepairsandmainte-nancehelpstoensurethecontinuedfunc-tioningofacar.　　（B）Ownerscantakechancesonnotmaintainingorrepairingtheircars.　　（C）Inordertokeepoperating,carswillnormallyneedsomework.　　（D）Theproblemswithacarwillbecomeworseiftheyarenotattendedto.　　（E）Acarwilllastforonlyalimitedperiodoftimeandthenmustbereplaced.　　Whichofthefollowing,iftrue,wouldbemostdamagingtotheargumentabove,providedthattheathlete'sheartrateisthesameathighandlowalti-tudes?

　　（A）Scientistshavefoundthatanathlete'sheartrequiresaperiodoftimetoadjusttoworkingathighaltitudes.　　（B）Scientistshavefoundthatthebody'stotalvolumeofblooddeclinesbyasmuchas25percentathighaltitudes.　　（C）Middle-distancerunnerswhotrainathighaltitudessometimesloseracestomiddle-distancerunnerswhotrainatsealevel.　　（D）Theperformancesofathletesincompetitionsatallaltitudeshaveimprovedmarkedlydur-ingthepasttwentyyears.　　（E）Ataltitudesabove5,500feet,middle-distancerunnersoftenbettertheirsea-levelrunningtimesbyseveralseconds.　　Questions7-13　　Whentheyholdameeting,sevencompanyexecutives-T,U,V,W,X,Y,andZ-sitatarectangulartable.Threeexecutivessitalongonesideofthetable,andthreesitalongtheotherside,eachdirectlyoppositeoneoftheotherthree.Theseventhsitsattheheadofthetable;thereisnoseatatthefootofthetable.　　Ualwayssitsinoneofthetwoseatsfarthestfromtheheadofthetable.　　YandValwayssitnexttoeachother.　　VneversitsnexttoZ.　　IfZdoesnotsitattheheadofthetable,Wsitsthere.　　7.Whichofthefollowingisanacceptableseatingarrangementoftheexecutives,startingwithU,movingtowardtheheadofthetable,andcon-tinuingaroundthetable?

　　（A）U,X,T,Z,V,Y,W　　（B）U,T,X,Z,Y,V,W　　（C）U,X,Z,Y,V,W,T　　（D）U,Z,W,X,V,Y,T　　（E）U,T,X,W,Z,V,Y　　8.IfWsitsdirectlyoppositeT,Xmustsitnexttowhichofthefollowingexecutives?

　　（A）T（B）U（C）V（D）Y（E）Z　　9.IfTsitsdirectlyoppositeZandnexttoV,whichexecutivemustsitdirectlyoppositeU?

　　（A）V（B）W（C）X（D）Y（E）Z　　10.IfZsitsdirectlyoppositeX,whichexecutivemustsitnexttoU?

　　（A）T（B）V（C）W（D）Y（E）Z　　11.IfTandUsitimmediatelyoneithersideofX,theexecutivesittingdirectlyoppositeXmustbeeither　　（A）WorV（B）WorZ（C）YandV　　（D）YorZ（E）ZorV　　12.IfWsitsdirectlyoppositeUandnexttoT,thetwoexecutivessittingimmediatelyoneithersideofXmustbe　　（A）YandV（B）YandW（C）TandZ　　（D）TandV（E）ZandW　　13.IfZsitsattheheadofthetable,YdirectlyoppositeU,andVimmediatelyonX'sleft,whatisthetotalnumberofpossibleseatingarrange-mentsoftheexecutives?

　Aweaverwhoisworkingonsixrugs-G,H,I,J,K,andL-ispreparingaworkscheduleforaworkweekconsistingoffiveconsecutiveworkdays-MondaythroughFriday.RugsG,H,andIareofpattern1,rugsJandKareofpattern2,andrugLisofpattern3.Theworkmustbescheduledinaccor-dancewiththefollowingconditions:

　　Theweavermustworkoneachofthesixrugsdur-ingtheworkweek.　　Theweavercannotworkonthesamerugontwoconsecutivedays.　　OnanydaythattheweaverworksonrugG,theweavermustworkonrugJ;theweavercannotworkonrugLthatday.　　Onanydaythattheweaverworksonmorethanonerug,thoserugsmustallbeofdifferentpat-terns.　　14.Theweavercouldscheduleworkonwhichofthefollowingrugsforthesameday?

　　（A）G,J,andL（B）G,I,andK　　（C）G,J,andK（D）H,I,andL　　（E）H,J,andL　　15.Iftheweaver'sdecisionistoworkonrugJonTuesday,theweaverCANNOTworkonrug　　（A）GonMonday（B）HonTuesday　　（C）IonWednesday（D）KonThursday　　（E）LonFriday　　16.Iftheweaver'sdecisionistoworkonrugGonMondayandFridayonly,andonrugKonWednesdayonly,theweavermustworkonarugofpattern2onexactlyhowmanyworkdays?

　　（A）1（B）2（C）3（D）4（E）5　　Questions17-22　　Ruth,Sandra.Thea,andUllaarethefourfinalistsinacontestinwhichtheyperformsetexercisesonabalancebeam.Ineachroundofthecontest,differentexercisesmustbeattempted.Acontestantiseliminatedthefirsttimeshefailsatanyoftheexercises.Toreduceanyeffectthattherelativeorderofcontestantswithinroundsmayhaveontheirperformance,theirrelativeordermustbechangedingoingfromoneroundtothenextifitispossibletodosobyexecutingoneofthefollowingthreealternativereorderingsbetweenrounds:

　　X:

Movethepreviouslythirdcontestantdirectlyinfrontofthepreviouslysecondcontestant.　　Y:

Movethepreviouslythirdcontestantdirectlyinfrontofthepreviouslyfirstcontestant.　　Z:

Movethepreviouslylastcontestantintofirstposition.　　Ifacontestantmentionedinareorderinghasjustbeeneliminated,thatreorderingcannotbeexe-cuted.　　Ifnoneofthereorderingscanbeexecuted,theremainingcontestantsmustperforminthesameorderrelativetoeachotherasinthepreviousround.　　17.IftheorderofcontestantsinoneroundisUlla,Ruth,Sandra.Thea,andifSandraisaloneinbeingeliminatedinthatround,theorderofcontestantsforthenextroundmustbewhichofthefollowing?

　　（A）Ruth,Thea,Ulla（B）Ruth,Ulla,Thea　　（C）Thea,Ruth,Ulla（D）Thea,Ulla,Ruth　　（E）Ulla,Ruth,Thea　　18.IftheorderofcontestantsinoneroundisSandra,Ruth,Thea.Ulla,andifnoneofthecontestantsiseliminatedinthatround,itmustbetruethatinthenextround　　（A）Ruthisthird（B）Sandraissecond　　（C）Theaisfirst（D）Ullaisfirst　　（E）Ullaisfourth　　19.Theeliminationofwhichofthefollowingpairsofcontestantsinaroundinwhichallfourcontestantscompetedwouldhavetheconsequencethattherel-ativepositionoftheremainingcontestantsremainsunchanged?

　　（A）Thosecompetingfirstandsecond　　（B）Thosecompetingfirstandthird　　（C）Thosecompetingsecondandthird　　（D）Thosecompetingsecondandfourth　　（E）Thosecompetingthirdandfourth　　20.IftheorderofcontestantsinaroundinwhichnoonefailsisRuth,Thea,Ulla,Sandra,theorderofcontestantsinthenextroundcouldbewhichofthefollowing?

　　（A）Ruth,Sandra,Ulla,Thea　　（B）Sandra,Ruth,Ulla,Thea　　（C）Sandra,Ulla,Ruth,Thea　　（D）Thea,Ruth,Ulla,Sandra　　（E）Ulla,Ruth,Thea,Sandra　　21.Ifnoneofthefourcontestantsiseliminatedinthecourseofthefirsttowrounds,andiftheorderofcontestantsinthethirdroundisthesameasitwasinthefirstround,whichofthefollowingmusthavebeenthetworeorderingsexecutedsofar?

　　（A）X,twice（B）Z,twice　　（C）X,followedbyY（D）Y,followedbyX　　（E）Z,followedbyY　　22.IftheorderofcontestantsinoneroundisThea,Sandra,Ulla,Ruth,andifSandraremainsinsecondpositionafterward,whichofthefollowingcouldhavehappened?

　　（A）Noneofthecontestantswaseliminatedintheround,andXwasexecuted.　　（B）Ruthalonewaseliminatedintheround,andXwasexecuted.　　（C）Theaalonewaseliminatedintheround,andYwasexecuted.　　（D）Ullaalonewaseliminatedintheround,andZwasexecuted.　　（E）Theaalonewaseliminatedintheround,andZwasexecuted.　　24.Thecostoftheaveragecomputerlogicdeviceisfallingattherateof25percentperyear,andthecostoftheaveragecomputermemorydeviceattherateof40percentperyear.Itcanbeconcludedthatiftheseratesofcostdeclineremainconstantforaperiodofthreeyears,attheendofthattimethecostoftheaveragecomputermemorydevicewillhavedeclinedbyagreateramountthanthecostoftheaveragecomputerlogicdevice.　　Accurateinformationaboutwhichofthefollowingwou