thE spECiEs oF FAunA AnD FlorA rEmAining in tiBEt 'AFtEr thE plEistoCEnE glACiAtions CAn propErly BE CAllED ContinEntAl BECAusE thEy ______.
A．ArE thE only liFE Forms in tiBEt, A lArgE piECE oF' lAnD
B．ArE originAlly FounD in ContinEntAl ClimAtEs
C．ArE FounD in lAnD mAss thAt usED to BE A sEpArAtE ContinEnt
D．hAvE BEEn FounD in othEr pArts oF thE AsiAn ContinEnt