问题
单项选择题
对某PI调节系统，为了防止积分饱和，采取以下措施，哪一条是不起作用的。（）
A、采用高低值阻隔器
B、采用调节器外部积分反馈法
C、采用PI-P调节器
D、采用PI-D调节器
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
对某PI调节系统，为了防止积分饱和，采取以下措施，哪一条是不起作用的。（）
A、采用高低值阻隔器
B、采用调节器外部积分反馈法
C、采用PI-P调节器
D、采用PI-D调节器
参考答案：D
| 阅读理解。 | ||
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| 1．It's Friday afternoon, you can go to _______. | ||
[ ] | ||
| A. visit the museum B. play soccer C. play basketball D. read children's stories | ||
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