Researchonembryonicstemcells(胚胎干细胞)isdebatablebecauseit...
问题详情：Researchonembryonicstemcells(胚胎干细胞)isdebatablebecauseitrequiresthedestructionoflivehumanembryos.Supportersfinditeasytominimizethesignificanceofthisfactbecausetheembryosareonlyafewdaysold...