题目内容:
TheaimoftheresearchattheUniversityofWisconsinis____.[Altoisolatestemcellsandtogetthemgrowintodifferentcells
[B]toshowtheeffectsofgenetherapies
[C]toshowustheadvantagesofhumancloning
[D]totestthelimitationsoftissuereplacements
参考答案:
答案解析: