The passage says that people can faint if they are______. [br] We try to help a

游客2025-07-30 25

问题 The passage says that people can faint if they are______. [br] 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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