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    Scientists have made a new computer program allows the computer to cry out for help if someone has stolen it. A. who B. which C. what D. when 【查看更多】

     

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    Scientists have made a new computer program ________ allows the computer to cry out for
    help if someone has stolen it.
    [     ]
    A. who
    B. which
    C. what
    D. when

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