◎ 题干

. It is only when we cannot see clearly _____ we come to see ______ important our eyes are.
A.that; what B.which; whatC.that; howD.which; how
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“. It is only when we cannot see clearly _____ we come to see ______ important our eyes are.A.that; what B.which; whatC.that; howD.which; how…”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。