gmat逻辑分类 旧prep2削弱Word文档格式.docx

gmat逻辑分类 旧prep2削弱Word文档格式.docx

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-188;

#058&

000703）

DowntownVillieuwasonceaflourishingbusinessdistrict,butmostVillieu-areabusinessesarenowlocatedonlyinthesuburbs.Theofficebuildingsdowntownlackthemodernamenitiesmostbusinessoperatorsdemandtoday.Toluremorebusinessesdowntown,Villieuofficialsplantohaveseveralmodernofficebuildingsconstructedandtoofferreducedlocaltaxratestoanybusinessthatleasesspaceinanewdowntownbuilding.

Whichofthefollowing,iftrue,mostthreatenstheplan'

slikelihoodofsuccess?

（A）MostofthebusinessescurrentlylocatedindowntownVillieuhavelong-termleasesonthespacetheyoccupythere.

（B）TheexistingofficebuildingsindowntownVillieuhave,onaverage,amuchhighervacancyratethandoofficebuildingsinVillieu'

ssuburbs.

（C）ThelocaltaxratesinVillieu'

ssuburbsaresignificantlylowerthandowntownVillieu'

sproposedrateforbusinessesthatleasespaceinthenewofficebuildings.

（D）MostofthebusinessesthatcurrentlyleaseofficespaceindowntownVillieualsoleaseofficespaceinVillieu'

（E）Withthenewofficebuildings,downtownVillieuwouldhaveagreateramountofmodernofficespacethananyotherdowntownbusinessdistrictintheregion.

3.（24117-!

000708）

NorthernAirhasdozensofflightsdailyintoandoutofBellevilleAirport,whichishighlycongested.NorthernAirdependsforitssuccessoneconomyandquickturnaroundandconsequentlyisplanningtoreplaceitslargeplaneswithSkybuses,whosenovelaerodynamicdesignisextremelyfuelefficient.TheSkybus'

fuelefficiencyresultsinbothlowerfuelcostsandreducedtimespentrefueling.

Whichofthefollowing,iftrue,couldpresentthemostseriousdisadvantageforNorthernAirinreplacingtheirlargeplaneswithSkybuses?

（A）TheSkybuswouldenableNorthernAirtoscheduledirectflightstodestinationsthatcurrentlyrequirestopsforrefueling.

（B）Aviationfuelisprojectedtodeclineinpriceoverthenextseveralyears.

（C）ThefuelefficiencyoftheSkybuswouldenableNorthernAirtoeliminaterefuelingatsomeofitsdestinations,butseveralmechanicswouldlosetheirjobs.

（D）NoneofNorthernAir'

scompetitorsthatuseBellevilleAirportareconsideringbuyingSkybuses.

（E）TheaerodynamicdesignoftheSkybuscausesturbulencebehinditwhentakingoffthatforcesotherplanesontherunwaytodelaytheirtakeoffs.

9.（24497-!

001429）

BetaCorporationclaimsthatitnolongerhasenoughworkforthe60computerdata-entryworkersthatitislayingoff.Theseworkershaveheard,however,thatthecompanyisbuying100newcomputers.Sotheworkersconcludedthatthecompany'

srealreasonforlayingthemoffistofilltheirjobswithlower-paidworkers.

Whichofthefollowing,iftrue,wouldmostunderminetheworkers'

conclusion?

（A）Mostoftheworkersbeinglaidoffknowhowtoenterdataonanumberofdifferentcomputersystems.

（B）OrdersforalmostallofBetaCorporationproductshaveincreasedoverthepastyear.

（C）ArecentmemorandumfromthepresidentofBetaCorporationrequestedthatalldatageneratedbythecompanybestoredincomputerizedform.

（D）BetaCorporation'

scomputerdata-entryworkersaremoreexperiencedandhencemorehighlypaidthanpeopledoingcomparableworkinothercompanies.

（E）BetaCorporation'

snewcomputerswillallowitscurrentmanagementandsalesstafftoperformmanyofthetasksthatthedata-entryworkerswerepreviouslydoing.

13.（25752-!

002668）

AnunusuallyseverewinteroccurredinEuropeafterthecontinentwasblanketedbyabluehazeresultingfromtheeruptionoftheLakiVolcanointheEuropeanrepublicofIcelandinthesummerof1984.Thus,itisevidentthatmajoreruptionscausetheatmospheretobecomecoolerthanitwouldbeotherwise.

Whichofthefollowingstatements,iftrue,mostseriouslyweakenstheargumentabove?

（A）Thecoolingeffecttriggeredbyvolcaniceruptionsin1985wascounteractedbyanunusualwarmingofPacificwaters.

（B）ThereisastrongstatisticallinkbetweenvolcaniceruptionsandtheseverityoftherainyseasoninIndia.

（C）AfewmonthsafterElChichn'

slargeeruptioninApril1982,airtemperaturesthroughouttheregionremainedhigherthanexpected,giventhelong-termweathertrends.

（D）Theclimaticeffectsofmajorvolcaniceruptionscantemporarilymaskthegeneralwarmingtrendresultingfromanexcessofcarbondioxideintheatmosphere.

（E）ThreemonthsafteranearlyspringtimeeruptioninSouthAmericaduringthelate19thcentury,seasurfacetemperaturesnearthecoastbegantofall.

15.（25986-!

002914）

Someairlinesallegedlyreducefaresoncertainroutestoalevelatwhichtheylosemoney,inordertodrivecompetitorsoffthoseroutes.However,thismethodofeliminatingcompetitioncannotbeprofitableinthelongrun.Onceanairlinesuccessfullyimplementsthismethod,anyattempttorecouptheearlierlossesbycharginghighfaresonthatrouteforanextendedperiodwouldonlyprovidecompetitorswithabetteropportunitytoundercuttheairline'

sfares.

Whichofthefollowing,iftrue,mostseriouslyweakenstheargument?

（A）Insomecountriesitisnotillegalforacompanytodriveawaycompetitorsbysellingaproductbelowcost.

（B）Airlineexecutivesgenerallybelievethatacompanythatonceunderpriceditsfarestodriveawaycompetitorsisverylikelytodosoagainifnewcompetitorsemerge.

（C）Aspartofpromotionsdesignedtoattractnewcustomers,airlinessometimesreducetheirticketpricestobelowaneconomicallysustainablelevel.

（D）Ondecidingtostopservingparticularroutes,mostairlinesshiftresourcestootherroutesratherthanreducethesizeoftheiroperations.

（E）Whenairlinesdramaticallyreducetheirfaresonaparticularroute,thetotalnumberofairpassengersonthatrouteincreasesgreatly.

22.（28162-!

003858）

Herbicidesallowcerealcropstobegrownveryefficiently,withvirtuallynocompetitionfromweeds.InBritain,partridgepopulationshavebeensteadilydecreasingsinceherbicideusebecamewidespread.Someenvironmentalistsclaimthatthesebirds,whichliveinandaroundcerealcropfields,arebeingpoisonedbytheherbicides.However,testsshownomorethantracequantitiesofherbicidesinpartridgesonherbicide-treatedland.Therefore,somethingotherthanherbicideusemustberesponsibleforthepopulationdecrease.

Whichofthefollowing,iftrueaboutBritain,mostseriouslyweakenstheargument?

（A）Theeliminationofcertainweedsfromcerealcropfieldshasreducedthepopulationofthesmallinsectsthatliveonthoseweedsandthatformamajorpartofpartridgechicks'

diet.

（B）Sincepartridgesarevaluedasgamebirds,recordsoftheirpopulationaremorecarefullykeptthanthoseformanyotherbirds.

（C）Someoftheweedsthatareeliminatedfromcerealcropfieldsbyherbicidesaremuchsmallerthanthecropplantsthemselvesandwouldhavenonegativeeffectoncropyieldiftheywereallowedtogrow.

（D）Birdsotherthanpartridgesthatliveinoraroundcerealcropfieldshavealsobeensufferingpopulationdeclines.

（E）Thetoxinscontainedinherbicidestypicallyusedoncerealcropscanbereadilyidentifiedinthetissuesofanimalsthathaveingestedthem.

36.（31643-!

006431）

Traveler:

SouthernAirwayshasafarworsesafetyrecordthanAirDacentariaoverthepastfewyears,intermsofboththefrequencyofaccidentsandtheseverityofaccidents.Therefore,althoughAirDacentariaisslightlymoreexpensive,IwillchooseitoverSouthernAirwaysformyflightfromPedertontoDacenta,sinceitisworthpayingextratohaveasaferflight.

Whichofthefollowing,iftrue,caststhemostseriousdoubtonthetraveler'

sargument?

（A）AirDacentaria'

sflightfromPedertontoDacentaisnonstop,whereasSouthernAirways'

flighttouchesdowninGorindaontheway.

（B）MostSouthernAirwaysflights,butnotitsflightfromPedertontoDacenta,useSarmouthairport,whichbecauseofitsmountainouslocationisoneoftheworld'

smostdangerous.

（C）ForitsflightsfromPedertontoDacenta,SouthernAirwaysusesadifferentmodelofairplane,withasmallercapacity,thanthemodelAirDacentariausesforitsflightsonthesameroute.

（D）OnlyinthelastfewyearshasthecostofflyingfromPedertontoDacentabeenmoreexpensiveonAirDacentariathanonSouthernAirways.

（E）AlthoughthefrequencyofaccidentsisgreateronSouthernAirways,onbothairlinestheproportionofflightsthathaveaccidentsisverysmall.

38.（32291-!

006866）

Offshoreoil-drillingoperationsentailanunavoidableriskofanoilspill,butimportingoilontankerspresentlyentailsanevengreatersuchriskperbarrelofoil.Therefore,ifwearetoreducetheriskofanoilspillwithoutcurtailingouruseofoil,wemustinvestmoreinoffshoreoperationsandimportlessoilontankers.

Whichofthefollowing,iftrue,mostseriouslyweakenstheargumentabove?

（A）Tankerscaneasilyberedesignedsothattheiruseentailslessriskofanoilspill.

（B）Oilspillscausedbytankershavegenerallybeenmoreseriousthanthosecausedbyoffshoreoperations.

（C）Theimpactofoffshoreoperationsontheenvironmentcanbecontrolledbycarefulmanagement.

（D）Offshoreoperationsusuallydamagetheoceanfloor,buttankersrarelycausesuchdamage.

（E）Importingoilontankersiscurrentlylessexpensivethandrillingforitoffshore.

39.（32799-!

007548）

TheimpositionofquotaslimitingimportedsteelwillnothelpthebigAmericansteelmills.Infact,thequotaswillhelp"

mini-mills"