题目内容

共集放大电路既能放大电压,也能放大电流。( )

A. 对
B. 错

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两个单级放大电路空载的放大倍数均为-50,将它们构成两级阻容耦合放大器后,总的放大倍数为2500. ( )

A. 对
B. 错

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