车站同一股道向两端办理发车作业时,必须在一端列车()后,方可开放另一端出站(发车进路)信号。
A. 列车启动
B. 越过出站(发车进路)信号
C. 机车越过停车位置标
D. 列车整列越过警冲标
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Which of the following materials is a good insulator?
A. copper
B. iron
C. rubber
债务人经过行政清理程序转入破产程序的,破产可撤销行为的起算点,为行政监管机构作出撤销决
Ghost, dragon and unicorn do not exist in the world, and Confucius is not present at this
A. arbitranness
B. duality
C. creativity
D. displacement