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问题 单项选择题

防止噪声污染的最根本措施是( )。

A．从声源上降低噪声

B．采用隔声装置

C．从传播途径上控制

D．对接收者进行防护

答案

参考答案：A

完形填空
完形填空.
      It's a fine morning. There __1__ many people in the park. What are they __2__ in the park? Some
__3__ are playing games. Some __4__ are walking __5__ the lake. Some boys are __6__ basketball.
Two girls are __7__ a storybook. What __8__ those men? They're __9__ tea under a big tree. Look!
Two cats are __10__ the tree. There are some birds in the tree. They want to catch the birds!
( ) 1. A. is            
( ) 2. A. to do        
( ) 3. A. boy          
( ) 4. A. man          
( ) 5. A. on            
( ) 6. A. play          
( ) 7. A. seeing        
( ) 8. A. about        
( ) 9. A. eating        
( ) 10. A. climbing (爬) 		B. are        
B. do        
B. child      
B. woman      
B. near      
B. singing    
B. looking    
B. at        
B. drinking  
B. looking    		C. be        
C. doing      
C. girl      
C. men        
C. under      
C. doing      
C. reading    
C. for        
C. putting on
C. running    		D. have    
D. making  
D. children
D. lady    
D. with    
D. playing  
D. watching
D. with    
D. making  
D. flying  
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单项选择题

我国人口占世界总人口的20%，耕地面积只占全世界耕地面积的( )，人均林地面积不到世界人均水平的( )，属于土地资源相对短缺的国家。

A．9.5%，30%

B．9.5%，40%

C．5.9%，30%

D．5.9%，40%
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