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提问人:网友c********1 发布时间:2024年4月23日 22:00
[单选题]

涵洞、护锥、桥台及隧道洞口处,路堤及路堑边坡高度大于m时,应设置检查台阶()

A.2

B.3

C.4

D.5

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