问题 单项选择题 A1/A2型题

下列关于预防医学的提法中,错误的是()

A.它以人群为主要研究对象

B.它以环境-人群-健康为模式

C.它以防治结合为指导思想

D.它以生物医学、环境医学和社会医学等理论和方法,探讨疾病在人群中发生、发展和转归的特点

E.它以达到预防疾病、促进健康和提高生命质量为目的

答案

参考答案:C

完形填空
完形填空。
     Have you ever seen the new way of __1__ fresh water? Here is an example. First, people make some
 long ponds (池塘) which are about half a meter __2__. Then they __3__ a cover (盖子) over each
 pond. The cover is made of glass that you can see through. At night, sea water __4__ into the ponds. The
  __5__ day, the __6__ sun shines through the covers. The sun light __7__ the water into vapor (水蒸气)
  that goes up from the __8__. As it goes up, the vapor becomes mist (薄雾).On the inside of each cover
 the little drops of mist run together to make big drops. People then __9__ these big drops through a
 special conduit (管道). Then the ponds are ready for the next day's work. __10__ we know, the covers
 and other parts of the ponds cost very little. Sea water and the sun cost nothing. So this new way of
 getting fresh water seems wonderful.
( ) 1. A. taking    
( ) 2. A. deep      
( ) 3. A. raise    
( ) 4. A. takes    
( ) 5. A. last      
( ) 6. A. beautiful
( ) 7. A. turns    
( ) 8. A. ponds    
( ) 9. A. buy      
( ) 10. A. Which    
B. making    
B. thick      
B. tie        
B. is taken  
B. third      
B. nice      
B. brings    
B. covers    
B. collect    
B. Since      
C. getting    
C. high      
C. fetch      
C. is taking  
C. first      
C. hot        
C. becomes    
C. cups      
C. drink      
C. For        
D. bringing      
D. wide          
D. put            
D. taken          
D. next          
D. Warm          
D. gets          
D. glass          
D. clean          
D. As            
单项选择题