【題目】So far all cloned animals have suffered from some different serious disorders, ________ dying soon after birth.

A. many of them B. many of whom

C. many of which D. many of that

【答案】A

【解析】考查現(xiàn)在分詞的獨立主格結(jié)構(gòu)。句意：但目前為止，所有克隆動物都患有不同的嚴重疾病，它們中很多出生后不久就死去。獨立主格結(jié)構(gòu)不是句子，是短語，但是它的作用相當于句子。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B/C. that指代單數(shù)名詞，而這里的them指代的all cloned animals，應(yīng)該使用復數(shù)形式。故選A。

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