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    We all need knowledge from the past - it comes from personal experience or from studying history. It is our only guide to the future. A. as B. whether C. how D. when 【查看更多】

     

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    We all need knowledge from the past — ______ it comes from personal experience or from studying history. It is our only guide to the future.

    A. as                       B. whether            C. how                       D. when

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    We all need knowledge from the past — ______ it comes from personal experience or from studying history. It is our only guide to the future.

    A. as                       B. whether            C. how                       D. when

    查看答案和解析>>


    We all need knowledge from the past — ______ it comes from personal experience or from studying history. It is our only guide to the future.

    A．asB．whetherC．howD．when

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     We all need knowledge from the past — ______ it comes from personal experience or from studying history. It is our only guide to the future.

    A. as              B. whether           C. how              D. when

     

    查看答案和解析>>


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