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问题 单项选择题

某研究者采用三种不同方案对糖尿病病人进行干预以比较效果差异，此时所采用的对照形式是（）。

A.实验对照

B.空白对照

C.标准对照

D.相互对照

E.历史对照

答案

参考答案：D

解析：某研究者采用三种不同方案对糖尿病病人进行干预以比较效果差异，此时所采用的对照形式是相互对照。

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       Sports and games are good   1   our health. They can   2   us strong, stop us from getting   3   fat
and keep   4   and happy. Especially(特别是),they can help the people who work with their brains (大脑)   5    of the day to study better, for sports and games let people   6   their body.
       They make our life richer and more colorful. If we   7   not have a strong body, we can   8   do things
well.  So persons of all ages enjoy   9   and taking part in   10    kinds of sports track and field(田径) ,
swimming, skateboarding and ball games.
( )1. A. at          
( )2. A. make        
( )3. A. to          
( )4. A. health      
( )5. A. all          
( )6. A. exercises    
( )7. A. are          
( )8. A. always      
( )9. A. seeing      
( )10. A. difference  		B. for        
B. find        
B. too        
B. healthy    
B. most        
B. to exercise
B. do          
B. hard        
B. watching    
B. different   		C. to            
C. do            
C. a lot of      
C. unhealthy      
C. some          
C. exercising    
C. don't          
C. hardly        
C. to watch      
C. difficult      		  D. with              
  D. help              
  D. two                
  D. healthily          
  D. any                
  D. exercise          
  D. aren't            
  D. sometimes          
  D. looking            
  D. difficulty        
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单项选择题 A1型题

消化油腻肉食积滞的要药是（）。

A.山楂

B.麦芽

C.莱菔子

D.鸡内金

E.厚朴
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