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    Many people think that it is making such an experiment. A. worthwhile B. worth C. worthy D. valuable 【查看更多】

     

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    . Many people think that it is ____________making such an experiment.

    A. worthwhile   B. worth        C. worthy        D. valuable

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    Many people think that it is       making such an experiment.

    A. worthwhile   B. worth        C. worthy        D. valuable

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     Many people think that it is       making such an experiment.

    A. worthwhile   B. worth        C. worthy        D. valuable

     

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