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    Joining the firm as a clerk, he got rapid promotion, and ________ as a manager.

    A．ended up B．dropped out

    C．came back D．started off

     

    A

    【解析】A　[ended up as 作为……而结束；dropped out“退出，退学”；came back“回来”；started off“动身，出发”。只有A项符合题意。]

     

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