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【单选题】
对于线路阻波器说法正确的是（）。
A.
线路阻波器与输电线路并联，接在耦合电容器与母线之间
B.
线路阻波器的作用是通过工频电流，减少变电站或分支线对高频信号的介入损耗
C.
线路阻波器主要由电感线圈、调谐元件、保护元件组成，其中调谐元件损坏，将完全不可用，起不到阻塞高频信号的作用
D.
我国规定，线路阻波器的分流损耗≥2.6dB
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题目标签：线路
参考答案：
参考解析：
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【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