如图所示,取两个相同的验电器a和b,使a带负电,b不带电,用带有绝缘手柄的�属棒把a和b连接起来.下列说法正确的是 A b中正电荷通过 Template




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tomski如图所示,取两个相同的验电器a和b,使a带负电,b不带电,用带有绝缘手柄的�属棒把a和b连接起来.下列说法正确的是 a b中正电荷通过 coloring