由于设备或业务量关系，布置进路可否指派助理值班员、信号员或扳道员办理？
参考答案：不可以。
—Hi, Bob! I can’t find my story book. Have you seen it?
—Sorry, I haven’t. Why not ask Jim? Perhaps he’s seen it _____.
A．anywhere
B．everywhere
C．nowhere
D．somewhere
同一水平同时行驶（）台及以上机车时，必须装备机车通讯设备
A.2
B.1
C.3
D.4
