问题 单项选择题

CPU中的加法器是由()完成的。

A.总线

B.控制器

C.算术逻辑部件(运算器)

D.寄存器

答案

参考答案:C

完形填空
完形填空
     Different people always have different ideas about how to spend their free time.
     Mike always loves ships.When he was older,he said,"I'm going to be a soldier." But his eyes were
not very  1 ,and he did not get in.
    Then he said,"I'm going to  2  a small boat and I'm going around the world."But boats were very
expensive,and Mike did not have enough  3 .
     Last summer Mike found a swimming  4  near his house.The lessons did not cost very  5 ,and Mike
began going to the school at every end of the week and having  6 .Now he is a good swimmer.
     Last week a little boy said to him,"You're a very good swimmer.How do 7  learn to swim so well?"
"I'm not good at all," Mike said and he smiled."  8  I'm in the water, I say to myself,'There are 9  fishes
behind me!'Then I'm very afraid,and I 10 quickly."
( ) 1. A. big       
( ) 2. A. buy        
( ) 3. A. food        
( ) 4. A. park        
( ) 5. A. much        
( ) 6. A. meals      
( ) 7. A. I          
( ) 8. A. If       
( ) 9. A. interesting
( ) 10.A. run       
B. beautiful  
B. make      
B. work      
B. school    
B. little    
B. lessons    
B. they      
B. When      
B. nice      
B. jump      
C. good      
C. borrow    
C. time      
C. farm      
C. many      
C. talks    
C. we        
C. Though    
C. dangerous
C. swim      
D. strong    
D. draw      
D. money      
D. factory    
D. any        
D. games      
D. you        
D. Where      
D. different  
D. fly        
选择题