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    ( ) We are sure that scientists will a way to solve the difficult problem . A. put up B. come up with C. look up D. come up 【查看更多】

     

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    We are sure that scientists will _____ a way to solve the difficult problem .      
    [     ]
    A. put up
    B. come up with
    C. look up
    D. come up

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    We are sure that scientists will _______ a way to solve the difficult problem．

    A．put up          B．come up with             C．look up              D．come up

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