So far all cloned animals have suffered from some different serious disorders, _

题干

So far all cloned animals have suffered from some different serious disorders, ______ dying soon after birth.

A．many of which

B．many of whom

C．many of that

D．many of them

上一题下一题 0.85难度单项选择更新时间:2011-12-05 02:58:51

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