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 them D. many of that

 

【答案】

C

【解析】考察獨立主格結(jié)構(gòu)。獨立主格結(jié)構(gòu)不是句子，是短語，但是它的作用相當(dāng)于句子。many of them dying soon after birth= and many of them are dying soon after birth.本句題干中缺少連詞，說明后面不是句子，排除AB. that指代單數(shù)名詞，而這里的them指代的all cloned animals，應(yīng)該使用復(fù)數(shù)形式。

 

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