◎ 题干
In many countries, some scientists are already _______ research in order to produce a cloned human baby.
A.putting up withB.coming up with
C.putting forwardD.pushing ahead with
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ In many countries, some scientists are already _______ research in order to produce a cloned human baby.A.putting up withB.coming up withC.putting forwardD.pus…”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。