gmat数学概念的题目

gmat数学概念的题目

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时间:2019-03-25

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1、数学概念的题目oG202.Gortlandhaslongbeennarrowlyself-sufficientinbothgrainandmeat.However,aspercapitaincomeinGortlandhasrisentowardtheworldaverage,percapitaconsumptionofmeathasalsorisentowardtheworldaverage,andittakesseveralpoundsofgraintoproduceonepoundofmeat.Therefore,sincepercapit

2、aincomecontinuestorise,whereasdomesticgrainproductionwillnotincrease,Gortlandwillsoonhavetoimporteithergrainormeatorboth.Whichofthefollowingisanassumptiononwhichtheargumentdepends?(A)ThetotalacreagedevotedtograinproductioninGortlandwillnotdecreasesubstantially.(B)Thepopulatio

3、nofGortlandhasremainedrelativelyconstantduringthecountry'syearsofgrowingprosperity.(C)ThepercapitaconsumptionofmeatinGortlandisroughlythesameacrossallincomelevels.(D)InGortland,neithermeatnorgrainissubjecttogovernmentpricecontrols.(E)PeopleinGortlandwhoincreasetheirconsumptio

4、nofmeatwillnotradicallydecreasetheirconsumptionofgrain.Consumption分成meatandgrain.此消彼长的关系关于逻辑中数量范围的问题数量的范围是逻辑题常考,特别是MUSTBE问题,混淆答案也常来于此。下而-题是LSAT,先讨论,后再公布答案及解释。(VALARIE说得对,纪念完了,我们要更加努力去学习)Theimportaneeoftheozonelayertoterrestrialanimalsisthatitentirelyfiltersoutsomewavelengthso

5、flightbutletsothersthrough.Holesintheozonelayerandthedangersassociatedwiththeseholesarewelldocumented.However,onedangerthathasnotbeengivensufficientattentionisthattheseholescouldleadtosevereeyedamageforanimalsofmanyspecies.Whichoneofthefollowingismoststronglysupportedbythesta

6、tementsabove,iftheyaretrue・A).Allwavelengthsofsunlightthatcancauseeyedamagearefilteredoutbytheozonelayerwhereitisintact・B).Fewspeciesofanimalsliveonapartoftheearth'ssurfacethatisnotthreatenedbyholesintheozonelayerC).Somespeciesofanimalshaveeyesthatwillnotsufferanydamagewhenex

7、posedtounfilteredsunlightD).AsinglewavelengthofsunlightcancauseseveredamagetotheeyesofmostspeciesofanimalsE).Somewavelengthsofsunlightthatcauseeyedamagearemorelikelytoreachtheearth'ssurfacewherethereareholesintheozonelayerthanwheretherearenot,答案都对了,是ETheimportaneeoftheozonela

8、yertoterrestrialanimalsisthatitentirelyfiltersoutsomewavelengthsofli

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