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    【题目】Important _______ having an ambition is, it must be channeled in the right direction. Otherwise, it would ruin ourselves and others.

    A. though B. if

    C. when D. while

    【答案】A

    【解析】

    考查状语从句。句意：尽管有雄心壮志是重要的，但是它必须被引导到正确的方向。否则，它会毁了我们自己和他人。A. though尽管；B. if如果；C. when 当---时候；D. while在---期间。此处though引导让步状语从句，相当于as（尽管），用部分倒装。故选A。

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