◎ 题干
The overseas Chinese scientist made another wonderful discovery, ___________ of great value to study AIDS.
A.which I think it isB.which I think isC.I think it isD.I think is
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The overseas Chinese scientist made another wonderful discovery, ___________ of great value to study AIDS.A.which I think it isB.which I think isC.I think it is…”主要考查了你对  【并列连词】【从属连词】  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。