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【单选题】
在线路坡度不超过（）‰的区段，单机挂车的辆数，以10辆为限。
A.
6
B.
12
C.
20
D.
10
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举报参考答案：
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
【单选题】变压器气体继电器联管在储油柜端稍高，朝储油柜方向有（ ）升高坡度。
A.
0.5%～1%
B.
1%～1.5%
C.
1.5%～2%
D.
2%～4%
相关题目：
【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
【单选题】变压器气体继电器联管在储油柜端稍高，朝储油柜方向有（ ）升高坡度。
A.
0.5%～1%
B.
1%～1.5%
C.
1.5%～2%
D.
2%～4%
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