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问题 单项选择题

1151型压力变送器属于（）压力变送器。它的传感器是电容式传感器。

A、差压式

B、电阻式

C、电容式

答案

参考答案：C

完形填空
完形填空。
      This is our school library. It is   1   from 8:30   2   11:30 in the morning and from 2:00 to 5:00 in the   3  .
Our school library is not very   4  . It has only two reading-rooms and about 2000 books. We often come here
  5   class. You can   6   one book at a time, and keep it   7   two weeks. In the reading-rooms, there are many
desks and   8  . We can sit there reading books   9   doing our homework. It's a   10   place for us students.
( ) 1. A. on    
(     ) 2. A. to    
(     ) 3. A. morning
(     ) 4. A. small 
(     ) 5. A. after 
(     ) 6. A. buy   
(     ) 7. A. after 
(     ) 8. A. chairs
(     ) 9. A. and   
(     ) 10. A. now   		B. open      
B. in        
B. afternoon 
B. big       
B. on        
B. see       
B. with       
B. teachers        
B. or        
B. old      		C. quiet    
C. at       
C. evening  
C. clean    
C. in       
C. read     
C. for      
C. students        
C. then     
C. good    		D. in        
D. on        
D. night     
D. dirty     
D. at        
D. borrow (借) 
D. under     
D. books     
D. in        
D. bad       
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填空题

______上两点间的一段叫做线段，______线有一个端点，______线没有端点．
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