There are also deputy station master in charge of train...
单项选择题There are also deputy station master in charge of train operation, operation director, operation duty man, assistant duty man, yardmaster, coupling man, brake man and ____________________ in charge of vehicle number management. 设有分管列车运行的副站长、运行主任、运行值班员、助理值班员、调车长、连接员、制动员和____________________，负责车号管理。
A、train driver 火车司机
B、vehicle number taker 车号员
C、signal facility signalmen 信号设备信号员
