单选题：According to the speaker, safety in dormitory means that you

题目分类：专四
题目类型：单选题
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题目内容：

According to the speaker, safety in dormitory means that you
[A] insure all your expensive things.
[B] lock doors when going out.
[C] lock windows at night.
[D] take all necessary precautions.

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根据材料，请在（4）处填上最佳答案。

分类：专四题型：单选题

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