轨道由什么组成（）_精华吧

轨道由什么组成（）

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轨道由什么组成（）

A.道岔

B.钢轨

C.轨枕

D.道床

正确答案：道岔；钢轨；轨枕；道床

Tag：城市轨道交通行车组织轨枕钢轨时间：2024-01-03 15:20:48

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