问题 单项选择题

有关珍珠状阴茎丘疹的发病原因,下列正确的是()

A.是一种生理变异,无须治疗

B.是一种性传播疾病

C.包皮环切后引起

D.病毒感染引起

E.包皮过长

答案

参考答案:A

完形填空
完型填空。
     Do you have a healthy eating habit? As we know, a healthy eating habit is good     1     health. Of all
the things we eat and drink,      2__ is the most important. Not _  3     people know this, but it is quite true
(真实的). Our bodies can go     4__ food for a long time.     5__ for two or three days without water
people may die.
     Many people don't know     6 _   water our bodies need to work well. And they don't drink     7__
water, especially(尤其) in hot weather. Most people drink only when they     8__ drink. But in fact they
often    9__ more water, especially after they have sports.
     Do you know 65% to 75% of a man's   10__ is water? If we don't have enough water, we feel tired
and may become ill.
( )1. A. for      
(     )2. A. fruit  
( )3. A. a lot   
( )4. A. for    
(     )5. A. And    
(     )6. A. how much
(     )7. A. any      
(     )8. A. try to  
(     )9. A. must    
(     )10. A. head  
B. of      
B. vegetables
B. many      
B. with      
B. Then      
B. how many  
B. some      
B. want to    
B. can        
B. arms      
C. in        
C. water  
C. little    
C. without  
C. So        
C. how      
C. a little  
C. in need  
C. need    
C. heart  
D. by          
D. food        
D. few        
D. through    
D. But        
D. why        
D. enough      
D. like        
D. needn't    
D. body        
多项选择题