如图<img alt="/upload/photos/20190626/fe81b6772e2847148392d69663cdff49.jpg" src="/upload/photos/20190626/fe81b6772e2847148392d69663cdff49.jpg" />如图所示的是(____)。
A开关一般符号
B接触器主动合触点
C断路器
D负荷开关
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如图<img alt=/upload/photos/20190626/fe81b6772e2847148392d69663cdff49.jpg src=/upload/photos/20190
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图E-11中(a)、(b)杆型<img alt=/upload/photos/20190626/73eeda25f46f4416991e1415120488b3.jpg src=/upload
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