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    25． the working efficiency, the boss allows the employees to have a coffee break. A．Improving B．To improve C．Having improved D．Improved 【查看更多】

     

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    ________ the working efficiency, the boss allows the employees to have a coffee break.
    [     ]
    A．Improving  
    B．To improve
    C．Having improved 
    D．Improved

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    ______ the working efficiency, the boss allows the employees to have a coffee break.

    A．Improving              B．To improve            C．Having improved          D．Improved

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    ________the working efficiency, the boss allows the employees to have a coffee break.

    A．ImprovingB．To improveC．Having improvedD．Improved

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    ________ the working efficiency, the boss allows the employees to have a coffee break．

    [　　]

    A．Improving

    B．To improve

    C．Having improved

    D．Improved

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    ________the working efficiency，the boss allows the employees to have a coffee break.

    A．Improving? B．To improve

    C．Having improved D．Improved

     

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