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    The meeting will begin ________ 4:30 this afternoon. Don’t forget it.

    A. onB. inC. at D. for

     

    C

    【解析】

    试题分析：句意：今天下午4：30会议开始。别忘了。时刻前介词用at。根据题意，故选C。

    考点：考查介词的用法。

     

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