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    The invention of the typewriter was a great to communication and printing. A. contribution B. devotion C. revolution D. construction 【查看更多】

     

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    The invention of the typewriter was a great_______  to communication and printing.

    A. contribution   B. devotion C.  revolution  D.   construction

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    The invention of the typewriter was a great_______  to communication and printing.

    A．contribution

    B．devotion

    C．revolution

    D． construction

     

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    The invention of the typewriter was a great contribution ________ communication and printing.

    [　　]

    A．in
    B．to
    C．of
    D．for

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