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【判断题】
线路夏、冬季限额值只可以在线路限额值维护里维护
A.
正确
B.
错误
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举报参考答案：
举一反三
【多选题】空冷器的维护内容有（）
A.
管束和连接处是否泄漏和腐蚀，是否堵塞
B.
电机及各部分温度正常润滑良好
C.
电机电流，空冷压力及流量
D.
风叶是否松动
【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
相关题目：
【多选题】空冷器的维护内容有（）
A.
管束和连接处是否泄漏和腐蚀，是否堵塞
B.
电机及各部分温度正常润滑良好
C.
电机电流，空冷压力及流量
D.
风叶是否松动
【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
参考解析：
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