A fire drill is. During the drill, when people hear the bell, they.

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问题 A fire drill is______.
During the drill, when people hear the bell, they______.

选项 A、should take any route to go down
B、should not go down by stairs
C、should take the lifts
D、should go down by stairs only

答案D

解析从文章第二句：When the bell rings，you all go very quickly，in a orderly way，down the stairs_the stairs，not in the lifts．得知。故本题答案为D。

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公共英语二级笔试

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