动物细胞培养过程的顺序是(    ) ①原代培养  ②传代培养  

动物细胞培养过程的顺序是(    )

①原代培养  ②传代培养   ③用胰蛋白酶处理组织,形成分散的悬浮液

A.①②③         B.①③②         C.②①③           D.③①②

答案

D

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