凡是两个或多个参数自动维持一定比值关系的过程控制系统,统称为()。

题型:填空题

问题:

凡是两个或多个参数自动维持一定比值关系的过程控制系统,统称为()。

考点:计算机科学技术计算机过程控制计算机过程控制题库
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读短文,选择正确答案。

      Hello! I'm from England. I'm new here. I'm a student. I love my teachers. They are very kind. Mr. Li is my

Chinese teacher. He's strong and short. Miss Guo is my math teacher. She is young and pretty. Miss Wu is my

favourite teacher. She teaches music. I like Tuesday very much, because we have music class. We often have

beef and tomatoes for lunch in the school on Tuesday. Ping-pong is my favourite sport.

1. The teachers are ____________.

A. quiet

B. kind

C. old

2. _____________ is my favourite teacher.

A. Music teacher

B. Math teacher

C. English teacher

3. What's Miss Guo like?

A. She is young and pretty.

B. She's young and short.

C. She's old and short.

4. What's my favourite sport?

A. Ping-pong.

B. Football.

C. Basketball.

5. Why do I like Tuesdays?

A. Because I often have beef and potatoes for lunch.

B. Because I have music class.

C. Because I have P. E. class.

题型:填空题

如果圆锥的底面半径为2,母线长为6,那么这个圆锥的侧面积是______.

题型:填空题

利率与投资总量呈反方向变化的原因是( )。

A.投资与储蓄之间的替代效应

B.国内投资与国外投资的替代效应

C.国际游资的冲击

D.中央银行的干预行为

题型:填空题

豌豆粉

题型:填空题

如果一艘满载原油的油轮在美国东部沿海发生泄漏,下列地区中受其污染最严重的是()

A.墨西哥沿岸

B.西欧沿岸

C.加拿大北部沿岸

D.非洲西海沿岸

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