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【单选题】
10（20）kV轻载线路指最大负载率≤____%的10（20）kV线路。
A.
0.1
B.
0.15
C.
0.2
D.
0.3
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