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甲乙类功放电路的效率最大可达_________
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甲乙类功放电路的效率最大可达_________
A、0.25
B、78.5%
C、50%
D、90%
时间：2021-09-01 20:20
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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