Which of the following is the best title for the passage? According to the passage, the pressure on a building during a tor nad

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问题 Which of the following is the best title for the passage?
According to the passage, the pressure on a building during a tor nado can be relieved by______.

选项 A、opening the windows
B、closing the windows
C、strengthening the roof and walls
D、using a fan

答案A

解析 答案在第三段里面。
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