风向标调试时将风向标的标头对准机头时对风角度应该是(). A.180° B.0° C

题型:单项选择题

问题:

风向标调试时将风向标的标头对准机头时对风角度应该是().

A.180°

B.0°

C.90°

D.270°

考点:风电场安全风电场安全题库
题型:单项选择题

阅读理解。

     I have a good friend. His name is Polly. He is 13. He is in Class Four, Grade Two. He has a small

sports collection. he has ten volleyballs, seven basketballs, five tennis rackets and four soccer balls.

He likes them very much. He doesn't play Sports. He only watches them on TV.

1. How many volleyballs does Polly have ?

A. Two.  

B. Three.

C. Ten.  

D. Five.

2. How many soccer balls does Polly have?

A. One.  

B. Two.

C. Three  

D. Four

3. Polly is in Class ____. 

A. Four  

B. Three  

C. Two    

D. One

4. Does Polly play sports?

A. Yes, he does.  

B. No, he doesn't.  

C. We don't know  

D. No, he does

5. How many basketballs does Polly have?

A. Ten 

B. Seven. 

C. Six.  

D. Two

题型:单项选择题

为了达到信息管理的目的,做到( ),并把握信息管理的各个环节。

A.了解和掌握信息来源,对信息进行分类

B.对信息进行加工整理

C.掌握和正确运用信息管理的手段

D.掌握信息的存储环节

E.掌握信息流程的不同环节,建立各信息管理系统

题型:单项选择题

中国一位民族资本家说:“我之廉价工人,彼(西方国家)亦得而使用;我之丰富原料,彼亦得而购买,就地制造,就地卖出,运费既省,关税无多,我之便利即彼得便利……”上述历史现象可能发生在哪一条约签订后

A《、南京条约》   B、《天津条约》   C、《马关条约》   D、《辛丑条约》

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在三相四线配电系统中,N线表示()

A.相线

B.中性线

C.工作零线

D.保护零线

题型:单项选择题

软件需求类型有功能需求和()。

A.非功能需求

B.质量属性

C.约束

D.用户需求

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