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【题目】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】考查现在分词的独立主格结构。句意:但目前为止,所有克隆动物都患有不同的严重疾病,它们中很多出生后不久就死去。独立主格结构不是句子,是短语,但是它的作用相当于句子。many of them dying soon after birth=" and" many of them are dying soon after birth.本句题干中缺少连词,说明后面不是句子,排除B/C. that指代单数名词,而这里的them指代的all cloned animals,应该使用复数形式。故选A。

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