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II型系统对数幅频特性的低频段渐近线斜率为( )

A、–60(dB/dec)

B、–40(dB/dec)

C、–20(dB/dec)

D、0(dB/dec)

时间：2021-07-17 23:23 关键词：电力系统自动化技术高起专自控原理 2019级毕业清考（考试分） 2019级第三学期期末考试

答案解析

B

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