题目内容
(请给出正确答案)
[单选题]
A-E-B-002 4 2 3在线路上垫入或撤出冻害垫板,在正线、到发线上,允许速度为120km/h(不含)~160km/h的线路顺坡长度不应小于冻起高度的()倍
A.400
B.600
C.1200
D.1600
答案
C、1200
如果结果不匹配,请 联系老师 获取答案
A.400
B.600
C.1200
D.1600
C、1200
A.400
B.600
C.1200
D.1600
A.12
B.8
C.10
D.11
A.轨距+7,-4mm
B.水平+6,-6mm
C.高低+4,-4mm
D.轨向+3,-3mm
E.三角坑+5,-5mm
A.5
B.6
C.8
D.3