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B型地铁列车缓解状态下，闸瓦与车轮的间隙为8±1mm。（）

发布于 2023-03-18 18:36:54

【单选题】
A 对
B 错

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喵星人fight！ 2023-03-18

一个爱好旅行的漂亮妹子。

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