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    精英家教网 > 高中英语 > 题目详情

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

    A．ImprovingB．To improve
    C．Having improvedD．Improved

    B

    解析句意为：为了提高工作效率，老板允许员工有一个喝咖啡休息的时间。不定式作目的状语，故选B项。

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