Do in case of fire and find the safe way out.A．keep coolB．keeping coolC．n_刷题宝

题干

Do in case of fire and find the safe way out.

A．keep cool

B．keeping cool

C．not stay calm

D．staying calm

上一题下一题 0.4难度单项选择更新时间:2017-08-19 02:02:00

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