GMAT±¸¿¼£ºÂß¼Á·Ï°Ö®GWD6-Q40
2021-11-29µã»÷Á¿£º128
GWD6-Q40:ItistheoreticallypossiblethatbacteriadevelopedonMarsearlyinitshistoryandthatsomewerecarriedtoEarthbyameteorite.However,strainsofbacteriafromdifferentplanetswouldprobablyhavesubstantialdifferencesinproteinstructurethatwouldpersistovertime,andnotwobacterialstrainsonEartharedifferentenoughtohavearisenondifferentplanets.So,evenifbacteriadidarriveonEarthfromMars,theymusthavediedout.Theargumentismostvulnerabletowhichofthefollowingcriticisms?A.ItfailstoestablishwhetherbacteriaactuallydevelopedonMars.B.ItfailstoestablishhowlikelyitisthatMartianbacteriaweretransportedtoEarth.C.ItfailstoconsiderwhetherthereweremeansotherthanmeteoritesbywhichMartianbacteriacouldhavebeencarriedtoEarth.D.ItfailstoconsiderwhetherallbacterianowonEarthcouldhavearisenfromtransportedMartianbacteria.E.ItfailstoconsiderwhethertherecouldhavebeenstrainsofbacteriathatoriginatedonEarthandlaterdiedout.´ð°¸£ºDж«·½½ÌÓýƵµÀ»òÌí¼ÓÀÏʦ΢ÐÅ£º...