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4. (单选题) 一般流量控制回路，采用（）控制器。

A、 PID

B、 P

C、 P    D

D、 PI

时间：2021-09-01 16:43 关键词：青书学堂平顶山学院化学化工仪表及自动化（专升本）

答案解析

D

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