The current limitations on embryonic stem cell research do not include ( ).
A、Theoriginofembryonicstemcellsandtheirethicalproblems;
B、Thehighcostofthecultureofembryonicstemcells;
C、Thelowefficiencyofdirectionaldifferentiationofembryonicstemcells;
D、Theundevelopedidentificationstandardofdifferentiationandmaturationofembryonicstemcells
发布时间：2025-11-24 12:03:21
