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【多选题】
以下可以作为车站线路有效长的起止控制点的是:
A.
警冲标
B.
车挡
C.
进站信号机
D.
调车信号机
E.
出站信号机
F.
车辆减速器
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers