行车设备故障耽误本列客运列车( )小时以上,定为D21事故。[332020201]
2023-12-01网管高级工选择题
行车设备故障耽误本列客运列车( )小时以上,定为D21事故。[332020201]
A.30min
B.45min
C.1h
D.1.5h
正确答案是C

行车设备故障耽误本列客运列车( )小时以上,定为D21事故。[332020201]
A.30min
B.45min
C.1h
D.1.5h
正确答案是C