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[单选题]
当列车运行速度小于140km£¯h时,站内相邻两线均需通行超限货物列车,且线间装有高柱信号机的线间距离,规定为()mm。
A.4000
B.5000
C.5300
D.5500
查看答案
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A.4000
B.5000
C.5300
D.5500
A.2
B.4
C.6
D.8
A.65
B.80
C.100
D.120
A.40
B.80
C.120
A.3km/h
B.5km/h
C.7km/h
D.9km/h
A.20
B.30
C.40
D.50
A.15
B.20
C.40