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Scientists still wonder whether cloning will help or harm us and where it us. A.

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Scientists still wonder whether cloning will help or harm us and where it us. A.

Scientists still wonder whether cloning will help or harm us and where it ____ us.

A. has led    B. is leading    C. had led    D. would lead

试题答案

B

解析:

略

标签：helpwillorusharm

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