题目内容
(请给出正确答案)
[单选题]
客运专线铁路,列车运行速度v=200km£¯h时,区间正线间的线间的线间距为()。
A.4000mm
B.4200mm
C.4400mm
D.4600mm
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A.4000mm
B.4200mm
C.4400mm
D.4600mm
A.5500mm
B.5000mm
C.5300mm
D.4800mm
A.1875mm
B.2000mm
C.2100mm
D.2150mm
A.1750mm
B.1875mm
C.2100mm
D.2150mm