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    【题目】Mary __________ and saw that a bear was moving to-wards her.

    A. turned down

    B. turned up

    C. turned on

    D. turned around

    【答案】D

    【解析】turn down “拒绝”；turn up “出现”；turn on“打开”；turn around “转向，回转”。根据句意D项正确。

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