sinCE ChimpAnzEEs ArE gEnEtiCAlly vEry similAr to humAns, ______.
A．ChimpAnzEEs ArE likEly to suFFEr AiDs just likE humAns iF thEy ArE inFECtED
B．it DoEs not mAttEr iF humAn BEings ArE inFECtED with siv rAthEr thAn hiv-1
C．wE CAn usE humAn vACCinEs to prEvEnt ChimpAnzEEs From gEtting AiDs virus
D．AiDs vACCinEs BAsED on Chimp's immunE mEChAnism ArE possiBlE to BE mADE