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18. 差分放大电路的主要特点是( )

A、有效放大差模信号,有力抑制共模信号

B、既放大差模信号,又放大共模信号

C、有效放大共模信号,有力抑制差模信号

D、既抑制差模信号,又抑制共模信号

时间：2021-09-01 16:48 关键词：青书学堂平顶山学院电气工程及其自动化模拟电子技术基础

答案解析

A

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