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[单选题]
列车最高运行速度160km£¯h时,紧急制动距离限值是()m。
A.300
B.800
C.1400
D.2000
查看答案
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A.300
B.800
C.1400
D.2000
A.800
B.1100
C.1400
D.2000
A.12km/h
B.20km/h
C.120km/h
D.10km/h
A.≤120km/h
B.>120km/h
C.≤160km/h
D.>160km/h
A.出场接车
B.上道作业
C.施工作业
D.维修作业
A.25
B.45
C.60
D.120