- 问题详情:SirJohn,aBritishscientistwhowonlastyear’sNobelPrizeformedicine,saidhehadpredictedatthetimeofhisfrogexperimentsthatthesuccessfulcloningofamammalwouldhappenwithin50years,andthat“maybethesameanswerisappropriate”forthesteptohumancloning.Parent...
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