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多级放大电路的级数愈多则上限频率fH越_
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多级放大电路的级数愈多则上限频率fH越_
A、大
B、小
C、宽
D、窄
时间：2021-09-02 13:37
关键词：
联大
河南理工大学
模拟电子技术
答案解析
B
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