The passage says that people can faint if they are. We try to help a person who has fainted by.

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问题 The passage says that people can faint if they are______.
We try to help a person who has fainted by______.

选项 A、rubbing his head
B、returning his blood to the brain
C、tightening his muscles
D、holding him in an upright (垂直的) position

答案B

解析可以从第一句话推理得到。参见57题的解释。

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公共英语二级笔试

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