在什么场合下选用,比例(P)比例积舍(PI)比例积分微分,(PID)调节规律。

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问题:

在什么场合下选用,比例(P)比例积舍(PI)比例积分微分,(PID)调节规律。

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Mr and Mrs White had two sons and three daughters. One Sunday Mrs White said to her husband, “The children don’t have any lessons today, and you’re free too. There’s a new funfair(游乐场) in the park. Let’s all go there to play.”

Her husband said, “I want to finish some work today.” “Oh, forget it. Go there and make our children happy. That’s the most important work.” Mrs White said.

So Mr and Mrs White took their children to the funfair. Mr White was 45 years old, but he enjoyed the funfair more than his children. He hurried from one thing to another, and ate lots of sweets. One of his children said to his mother, “Dad is just like a small child, isn’t he, mom?” Mrs White didn’t want to follow his husband around any more at that time and answered, “He is even worse than a small child, Mary, because he might spend more money than a small child.”

小题1: There were_____ children in the family.

A.two

B.three

C.four

D.five小题2: One Sunday, Mrs and Mr White wanted to go to_____ with their children.

A.school

B.work

C.a funfair

D.a shop小题3: Mr White liked the place so much that he_____.

A.sold lots of sweets

B.followed his wife all the time

C.hurried from one thing to another

D.asked a lot of questions小题4: From the story we know Mrs White_____ when Mary asked her the question.

A.was still excited to play

B.was a little angry with Mr White

C.looked for Mr White everywhere

D.ate a lot of sweets小题5: Of all the family members, _____enjoyed playing there most that Sunday.

A.Mr White

B.Mrs White

C.Mary

D.the boys

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Mr White eats _______ healthy food every day. [ ]

A. lots of

B. a lot

C. a lots of

D. many

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尿毒症患者以碳酸氢钠静脉滴入纠正代谢性酸中毒过程中发生手足搐搦机制是()

A.碱中毒

B.过敏反应

C.血中游离钙降低

D.低钾血症

E.高钠血症

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1:20是表示()

A.莫氏圆锥

B.公制圆锥

C.非标准圆锥

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