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正弦量的极大值是有效值的( )倍。

A、一

B、三

C、√2

时间：2021-07-17 23:22 关键词：发电厂及电力系统高起专电路理论期末考试电力系统自动化技术电气工程及其自动化专升本 2020级第一学期期末考试

答案解析

C

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