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更多“原代细胞（primary culture cell)”相关的问题
第3题
在一DNA复制体系中，以同位素32P标记的α－磷酸基dNTP为原料合成DNA，从原代起至少在第几代即可得到两条链均带32P标记的子代DNA链。（)
A.第二代
B.第三代
C.第四代
D.第六代
第10题
It is true that ______.A．a noncontact culture is usually referred to as culture shockB．the
It is true that ______.
A．a noncontact culture is usually referred to as culture shock
B．there is evidence that Americans belong to a touch culture
C．there is evidence that Arabs share a noncontact culture
D．our use of space is influenced by our cultures
