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女，46岁。因阵发性腹痛、呕吐、肛门停止排气排便5天收入院。既往有阑尾切除手术史，拟诊为肠梗阻。

下列辅助检查中不适合肠梗阻患者的是（）。

A.彩超

B.CT

C.血气分析

D.全消化道钡餐透视

E.腹部X线平片

答案

参考答案：D

完形填空
完形填空。

     Last summer I was a volunteer (志愿者) at a shelter(收容所) for the homeless, a place for homeless
people to sleep at night. I wasn't working that summer and was   1   only two classes in summer school,
so I had some   2   time.    
Three nights a week, I   3   in the kitchen of the shelter along with four other volunteers. We planned
and   4   for 45 people hot meals   5   vegetables, chicken, fish and fruit. The homeless people   6   this
good food because many of them usually didn't eat well.
     I   7   this volunteer work, making   8   with the four volunteers in the kitchen. One was a very nice
elderly(上了年纪的) housewife, one a movie actor, another a young teacher, and the other a college
student,   9   me.
     I talked to a lot of the homeless people at the shelter. Their life stories   10  me with sympathy (同情).
Some of them had  11  with alcohol (酒) or drugs while others only had bad   12 . One woman worked
for almost 30 years for a small company, and   13  she lost her job. She looked for a   14  job, but
couldn't
find one, for she was too  15  . She could do nothing but sell her furniture - sofas, chairs, and tables   16 
she could pay for her food. The woman   17  on job hunting, but she   18  couldn't find one. She had no
money for her   19  and had to sleep in her car. Then she had to sell her car. Alone,   20 , and homeless,
she finally came to the shelter.

( )  1. A. studying  
( )  2. A. full      
( )  3. A. helped     
( )  4. A. ordered    
( )  5. A. with       
( )  6. A. demand     
( )  7. A. wanted     
( )  8. A. decisions
( )  9. A. as        
( )10. A. struck    
( )11. A. habits    
( )12. A. luck      
( )13. A. so        
( )14. A. good      
( )15. A. old        
( )16. A. if        
( )17. A. went      
( )18. A. also      
( )19. A. car        
( )20. A. afraid    		B. planning              
B. free                  
B. waited                
B. bought                
B. from                  
B. needed                
B. had                    
B. wishes                
B. like                  
B. filled                
B. worries                
B. pain                  
B. again                  
B. fresh                  
B. poor                  
B. because                
B. moved                  
B. still                  
B. cottage(村舍, 小别墅)
B. shy                    		C. holding        
C. extra          
C. appeared      
C. cooked        
C. by            
C. collected      
C. owned          
C. friends        
C. except        
C. strikes        
C. difficulties  
C. experiment    
C. then          
C. skilled        
C. sick          
C. so that        
C. came          
C. almost        
C. building      
C. happy          		D. taking      
D. long        
D. washed      
D. finished    
D. in          
D. request      
D. enjoyed      
D. changes      
D. besides      
D. provided    
D. problems    
D. loss        
D. thus        
D. new          
D. dull        
D. in case      
D. worked      
D. even        
D. flat(公寓)
D. mad          
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单项选择题

关于肾血管性高血压的形成机制，下列叙述错误的是（）

A.肾动脉狭窄造成肾灌注压降低，刺激肾素分泌量增加

B.肾素转化为血管紧张素Ⅰ

C.血管紧张素Ⅰ在水解酶的作用下转化为血管紧张素Ⅱ

D.血管紧张素Ⅰ刺激肾上腺皮质分泌醛固酮，造成水钠潴留，使血压进一步升高

E.血管紧张素Ⅱ刺激肾上腺皮质分泌醛固酮，造成水钠潴留，使血压进一步升高
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