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    several times, the young scientist still kept on making his experiments. A. Having failed B. Having been failed C. Though failed D. Because of failure 【查看更多】

     

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    ______several times, the young scientist still kept on making his experiments.

    A.Having been failed 　　　 B.Having failed

    C.Though failed　　　　 D.Because of failure

     

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    ________several times, the young scientist still kept on making his experiments.

    A.　　  Having been failed 　　　　　　　　　　   B. Having failed

    C. Though failed 　　　　　　　　　　　　　　   D. Because of failure

     

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    ________several times, the young scientist still kept on making his experiments.

    A.　　  Having been failed 　　　　　　　　　　   B. Having failed

    C. Though failed 　　　　　　　　　　　　　　   D. Because of failure

     

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    ________ several times, the young scientist still kept on making his experiments.

    [　　]

    A．Having been failed
    B．Having failed
    C．Though failed
    D．Because of failure

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    ________ several times, the young scientist still kept on making his experiments．

    [　　]
    A．

    Having been failed

    B．

    Having failed

    C．

    Though failed

    D．

    Because of failure

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