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【单选题】
遇进入尽头式站台的线路取送作业时，距站台或原停留车（）要一度停车，然后以不超5km/h速度推送或连挂。
A.
20m
B.
25m
C.
30m
参考答案：
参考解析：
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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