Gmat考试逻辑试题90题4.docx

Gmat考试逻辑试题90题4.docx

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Gmat考试逻辑试题90题4

Gmat考试逻辑试题90题（4）

29.Thepriceofafull-farecoachticketfromTorontotoDallasonBreezewayAirlinesisthesametodayasitwasayearago,ifinflationistakenintoaccountbycalculatingpricesinconstantdollars.However,today90percentoftheToronto-to-DallascoachticketsthatBreezewaysellsarediscountticketsandonly10percentarefull-faretickets,whereasayearagohalfwerediscountticketsandhalfwerefull-faretickets.Therefore,onaverage,peoplepaylesstodayinconstantdollarsforaBreezewayToronto-to-Dallascoachticketthantheydidayearago.

　　Whichoneofthefollowing,ifassumed,wouldallowtheconclusionabovetobeproperlydrawn?

　　（A）AToronto-to-Dallasfull-farecoachticketonBreezewayAirlinesprovidesticket-holderswithalowerlevelofservicetodaythansuchaticketprovidedayearago.

　　（B）AToronto-to-DallasdiscountcoachticketonBreezewayAirlinescostsaboutthesameinconstantdollarsastheydidayearago.

　　（C）Allfull-farecoachticketsonBreezewayAirlinescostthesameinconstantdollarsastheydidayearago.

　　（D）TheaveragenumberofcoachpassengersperflightthatBreezewayAirlinescarriesfromTorontotoDallastodayishigherthantheaveragenumberperflightayearago.

　　（E）ThecriteriathatBreezewayAirlinesusesforpermittingpassengerstobuydiscountcoachticketsontheToronto-to-Dallasroutearedifferenttodaythantheywereayearago.

　　30.Combustionofgasolineinautomobileenginesproducesbenzene,aknowncarcinogen.Environmentalistsproposereplacinggasolinewithmethanol,whichdoesnotproducesignificantquantitiesofbenzenewhenburned.However,combustionofmethanolproducesFORMaldehyde,alsoaknowcarcinogen.Thereforetheenvironmentalists'proposalhaslittlemerit.

　　Whichoneofthefollowing,iftrue,mostsupportstheenvironmentalist'proposal?

　　（A）Theenginesofsomeautomobilesnowontheroadburndieselfuelratherthangasoline.

　　（B）SeverallargeresearcheffortsareunderwaytoFORMulatecleaner-burningtypesofgasoline.

　　（C）Insomeregions,thelocaleconomyislargelydependentonindustriesdevotedtotheproductionanddistributionofautomobilefuel.

　　（D）FORMaldehydeisalesspotentcarcinogenthanbenzene.

　　（E）Sincemethanoliswatersoluble,methanolspillsaremoredamagingtotheenvironmentthangasolinespills.

　　Questions31-32

　　Politicalopinionandanalysisoutsidethemainstreamrarelyarefoundontelevisiontalkshows,anditmightbethoughtthatthisstateofaffairsisaproductofthepoliticalagendaofthetelevisionstationsthemselves.Infact,televisionstationsaredrivenbythesameeconomicforcesassellersofmoretangiblegoods.Becausetheymustattempttocapturethelargestpossibleshareofthetelevisionaudiencefortheirshows,theyaironlythoseshowsthatwillappealtolargenumbersofpeople.Asaresult,politicalopinionsandanalysesairedontelevisiontalkshowsaretypicallyblandandinnocuous.

　　31.Anassumptionmadeintheexplanationofferedbytheauthorofthepassageisthat

　　（A）mosttelevisionviewerscannotagreeonwhichelementsofaparticularopinionoranalysisaremostdisturbing.

　　（B）therearetelevisionviewerswhomightrefusetowatchtelevisiontalkshowsthattheyknewwouldbecontroversialanddisturbing.

　　（C）eachtelevisionviewerholdssomeopinionthatisoutsidethepoliticalmainstream,butthoseopinionsarenotthesameforeveryone.

　　（D）therearetelevisionshowsonwhicheconomicforceshaveanevengreaterimpactthantheydoontelevisiontalkshows.

　　（E）thetelevisiontalkshowsofdifferentstationsresembleoneanotherinmostrespects.

　　32.Theexplanationofferedbytheauthorofthepassagemakestheassumptionthat

　　（A）televisionstationexecutivesusuallylackapoliticalagendaoftheirown

　　（B）blandandinnocuouspoliticalopinionsandanalysesaregenerallyinthemainstream

　　（C）politicalanalystsoutsidethemainstreamarerelativelyindifferenttotheeffecttheiranalyseshaveontelevisionviewers

　　（D）mosttelevisionviewersarepreparedtoargueagainstallowingtheexpressionofpoliticalopinionsandanalyseswithwhichtheydisagree

　　（E）thepoliticalopinionsoftelevisionstationexecutivesarenotoftenreflectedinthetelevisionshowstheirstationsproduce

　　Questions33-34

　　Conservationist:

Thepopulationofacertainwildflowerissosmallthatthespeciesisheadedforextinction.However,thiswildflowercancross-pollinatewithacloselyrelateddomesticateddaisy,producingviableseeds.Suchcross-pollinationcouldresultinasignificantpopulationofwildflower-daisyhybrids.Thedaisyshouldthereforebeintroducedintothewildflower'srange,sincealthoughthehybridwoulddiffermarkedlyfromthewildflower,hybridizationistheonlymeansofpreventingtotallossofthewildflowerinitsrange.

　　33.Whichoneofthefollowingprinciples,ifvalid,mosthelpstojustifytheconservationist'sreasoning?

　　（A）Itisbettertotakemeasurestopreserveavaluedtypeoforganism,evenifthosemeasuresaredrastic,thantoacceptalessvaluablesubstitutefortheorganism.

　　（B）Itisbettertopreserveatypeoforganismthatisindangerofextinction,evenifsurvivingorganismsofthattypearenotvigorous,thantoallowsomethingmorevigoroustoreplaceit.

　　（C）Itisbettertochangeatypeoforganismthatwouldotherwisebelost,evenifthechangesareradical,thantoloseitentirely.

　　（D）Itisbettertodestroyoneoftwocompetingtypesoforganisms,evenifbothareirreplaceable,thantoallowbothofthemtobelost.

　　（E）Itisbettertoprotectanendangeredtypeoforganism,evenifdoingsohassomenegativeeffectsonanothertypeoforganism,thantodonothingatall.

　　34.Whichoneofthefollowingisanassumptiononwhichtheconservationist'sreasoningdepends?

　　（A）ThewildflowercurrentlyreproducesonlybyFORMingseeds.

　　（B）Thedomesticateddaisywasbredfromwildplantsthatoncegrewinthewildflower'srange.

　　（C）Increasingthepopulationofthewildflowerwillalsoexpanditsrange.

　　（D）Wildflower-daisyhybridswillbeabletoreproduce.

　　（E）Thedomesticateddaisywillcross-pollinatewithanydaisylikeplant.

　　35.Becauseofincreasesinthepriceofoilandbecauseofgovernmentpoliciespromotingenergyconservation,theuseofoiltoheathomesfellby40percentfrom1970tothepresent,andmanyhomeownersswitchedtonaturalgasforheating.Becauseswitchingtonaturalgasinvolvedinvestinginequipment,asignificantswitchbacktooilinthenearfutureisunlikely.

　　Thepredictionthatendsthepassagewouldbemostseriouslycalledintoquestionifitweretruethatinthelastfewyears.

　　（A）thepriceofnaturalgastoheathomeshasremainedconstant,whilethecostofequipmenttoheathomeswithnaturalgashasfallensharply.

　　（B）thepriceofhomeheatingoilhasremainedconstant,whilethecostofequipmenttoheathomewithnaturalgashasrisensharply.

　　（C）thecostofequipmenttoheathomeswithnaturalgashasfallensharply,whilethepriceofhomeheatingoilhasfallento1970levels.

　　（D）thecostofequipmenttoheathomeswithoilhasfallensharply,whilethepriceofheatingwithoilhasfallenbelowthepriceofheatingwithnaturalgas

　　（E）theuseofoiltoheathomeshascontinuedtodecline,whilethepriceofheatingoilhasfallento1970levels

　　36.Sometimeswhentheirtrainergivesthehandsignalfor"Dosomethingcreativetogether"twodolphinscircleapoolintandemandthenleapthroughtheairsimultaneously.Ontheotheroccasions,thesamesignalelicitssynchronizedbackwardswimsortail-waving.Thesebehaviorsarenotsimplylearnedresponsestoagivenstimulus.Rather,dolphinsarecapableofhighercognitivefunctionsthatmayincludetheuseoflanguageandforethought.

　　Whichoneofthefollowing,iftrue,moststrengthenstheargument?

　　（A）Mammalshavesomeresemblancetooneanotherwithrespecttobodilyfunctionandbrainstructure.

　　（B）Thedolphinsoftenexhibitcomplexnewresponsestothehandsignal.

　　（C）thedolphinsaregivenfoodincentivesaspartoftheirtraining.

　　（D）Dolphinsdonotinteractwithhumansthewaytheyinteractwithoneanother.

　　（E）Someofthebehaviorsmentionedareexhibitedbydolphinsintheirnaturalhabitat

【

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掌握他们，你将开启新世界的大门。

Tab+Enter,在编过号以后，会自动编号段落

Ctrl+D调出字体栏，配合Tab+Enter全键盘操作吧

Ctrl+L左对齐，Ctrl+R右对齐，Ctrl+E居中

Ctrl+F查找，Ctrl+H替换。

然后关于替换，里面又大有学问！

有时候Word文档中有许多多余的空行需要删除，这个时候我们可以完全可以用“查找替换”来轻松解决。

打开“编辑”菜单中的“替换”对话框，把光标定位在“查找内容”输入框中，单击“高级”按钮，选择“特殊字符”中的“段落标记”两次，在输入框中会显示“^P^P”，然后在“替换为”输入框中用上面的方法插入一个“段落标记”（一个“^P”），再按下“全部替换”按钮。

这样多余的空行就会被删除。

Ctrl+Z是撤销，那还原呢？

就是Ctrl+Y，撤销上一步撤销！

比如我输入abc,按一下F4,就会自动再输入一遍abc