问题 单项选择题

按部颁反措要求,防止跳跃继电器的电流线圈应()。

A、接在跳闸继电器出口触点与断路器控制回路之间

B、与断路器跳闸线圈并联

C、与跳闸继电器出口触点并联

D、与跳闸继电器线圈并联

答案

参考答案:A

解析:

专业类型:继电保护

设备类型:线路

难度等级:B

电压等级:220kV

知识点:其他

填空题
完形填空。
     Yesterday evening I was watching the evening news on TV. The news was about a prize for scientific
discoveries. The 1 said something that caught my 2 . "All great discoveries," he said, "are made by people
between the ages of 25 and 30." Being a little over 30 myself, I wanted to 3 with him. Nobody wants to
think that he has passed the age of making any 4 . The next day I went to the public library, spending
several hours, and  5 to find the ages of famous people and their discoveries. The announcer was right!
     First, I looked at some of the   6  discoveries. One of the earliest, the famous one that   7  that bodies
of different weights   8  at the same speed, was made by Galileo when he was 26. Madam Curie started
her research that led to a Nobel Prize when she was 28. Einstein was 26 when he   9  his world-changing
Theory of Relativity. Well,  10  of that. Yet I wondered if those "best years" were true in other  11 .
     Then how about this in   12  ? Surely it needs the wisdom of   13  to make a good leader. Perhaps it
does, but look when these people   14  their careers. Winston Churchill was elected to the House of
Commons at the age of 26. Abraham Lincoln   15 the life of a country lawyer and was elected to the
government at what age? Twenty-six!
     But why don't best years come after 30? After 30, I   16  , most people don't want to take risks or try
new ways. Then I thought of people   17  Shakespeare and Picasso. The   18  was writing wonderful   19 
at the late age of 50,   20  the latter was still trying new ways of painting when he was 90!
     Perhaps there is still hope for me.
( )1. A. announcer
( )2. A. mind    
( )3. A. disagree
( )4. A. chance  
( )5. A. happened
( )6. A. last    
( )7. A. found    
( )8. A. disappear
( )9. A. invented
( )10. A. plenty  
( )11. A. fields  
( )12. A. election
( )13. A. age    
( )14. A. finished
( )15. A. led    
( )16. A. guess  
( )17. A. as      
( )18. A. first  
( )19. A. painting
( )20. A. when    
B. conductor  
B. care      
B. talk      
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B. wanted    
B. scientific
B. proved    
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B. improved  
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B. science    
B. politics  
B. brain      
B. won        
B. devoted    
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C. published
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D. society    
D. leadership
D. defeated  
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D. agree      
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D. works      
D. after      
单项选择题