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无轨运输的斜坡道设躲避硐室时,其间距在曲线段和直线段分别不超过()m。

发布于 2023-04-13 16:27:10

【单选题】
A 15,30
B 30,50
C 40,60

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Yohann 2023-04-13

这家伙很懒，什么也没写！

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卡姿兰小眼睛

你真的快乐吗？或许只是低着头不想说话……

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