GMAT備考:邏輯練習(xí)之GWD6-Q40
2021-11-29點擊量:96
GWD6-Q40:ItistheoreticallypossiblethatbacteriadevelopedonMarsearlyinitshistoryandthatsomewerecarriedtoEarthbyameteorite.However,strainsofbacteriafromdifferentplanetswouldprobablyhavesubstantialdifferencesinproteinstructurethatwouldpersistovertime,andnotwobacterialstrainsonEartharedifferentenoughtohavearisenondifferentplanets.So,evenifbacteriadidarriveonEarthfromMars,theymusthavediedout.Theargumentismostvulnerabletowhichofthefollowingcriticisms?A.ItfailstoestablishwhetherbacteriaactuallydevelopedonMars.B.ItfailstoestablishhowlikelyitisthatMartianbacteriaweretransportedtoEarth.C.ItfailstoconsiderwhetherthereweremeansotherthanmeteoritesbywhichMartianbacteriacouldhavebeencarriedtoEarth.D.ItfailstoconsiderwhetherallbacterianowonEarthcouldhavearisenfromtransportedMartianbacteria.E.ItfailstoconsiderwhethertherecouldhavebeenstrainsofbacteriathatoriginatedonEarthandlaterdiedout.答案:D新東方教育頻道或添加老師微信:...