试题与答案

三羧酸循环的第一个限速酶是（）。 A.丙酮酸脱氢酶 B.顺乌头酸酶 C.琥珀酸脱氢酶

来源：www.tikuol.com
题型：单项选择题 A1/A2型题

题目：

三羧酸循环的第一个限速酶是（）。

A.丙酮酸脱氢酶

B.顺乌头酸酶

C.琥珀酸脱氢酶

D.异柠檬酸脱氢酶

E.延胡索酸酶

答案：

参考答案：D

解析：异柠檬酸脱氢酶催化的反应是三羧酸循环过程的三个调控部位之一。

考点：临床医学检验学主治医师主治医师临床医学检验学
试题推荐
题型：完形填空
完形填空。
     Robert Moody, 52, is an experienced police officer. Much of his work involves dealing with   1   an gang (团
伙) problems in the schools of his community. Knowing that many kids often   2   trouble, he decided to do
something about it. So in 1991 he began to invite small groups of kids to go fishing with him on his day   3  .
     Those fun trips had a(n)   4   impact. A chance encounter in 2000 proved that. One day,   5   working security
at a school basketball game, Moody noticed two young guys   6  . He sensed trouble between them.   7   one of
them headed toward Moody and gave him a hug. "I   8   you. You took me   9   when I was in fifth grade. That
was one of the  10  days of my life."
     Deeply touched by the boy's word, Moody decided to create a foundation (基金会) that  11  teenagers to the
basics of fishing in camping programs. "As a policeman, I saw  12  there was violence, drugs were always behind
it. They have a damaging  13  on the kids," says Moody.
     By turning kids on to fishing, he  14  to present an alternative way of life, "When you're sitting there waiting
for a  15 ," he says, "you can't help but talk to each other, and such  16  can be pretty deep."
     "Talking about drugs helped prepare me for the peer (同龄人) pressures in high school," says Michelle, who 
 17  the first program. "And I was able to help my little brother  18  drugs."
     Moody faces  19  in three years, when he hopes to run the foundation full-time. "I'm living a happy life and I
have a responsibility to my  20  to give back," Moody says. "If I teach a kid to fish today, he can teach his brother
to fish tomorrow."
( )1. A. drinking          
( )2. A. ran into          
( )3. A. ahead             
( )4. A. immediate         
( )5. A. once              
( )6. A. quarreling      
( )7. A. Slowly          
( )8. A. understand        
( )9. A. fishing           
( )10. A. quietest          
( )11. A. connects          
( )12. A. where             
( )13. A. impression        
( )14. A. asked             
( )15. A. solution          
( )16. A. concerns          
( )17. A. participated in   
( )18. A. misuse            
( )19. A. unemployment      
( )20. A. team             		B. drug        
B. got over    
B. away        
B. damaging    
B. while       
B. complaining      
B. Suddenly    
B. hear        
B. sailing     
B. longest     
B. introduces  
B. unless      
B. burden      
B. intended    
B. change      
B. interests   
B. worked out        
B. avoid       
B. challenge   
B. school       		C. security    
C. left behind 
C. off         
C. limited     
C. since       
C. talking     
C. Finally     
C. see         
C. boating     
C. best        
C. reduces     
C. as          
C. decision    
C. pretended   
C. bite        
C. conversations       
C. approved of 
C. tolerate    
C. competition 
C. family       		D. smoking        
D. looked into    
D. out            
D. lasting        
D. until          
D. cheering       
D. Secretly       
D. remember       
D. swimming              
D. busiest        
D. commits        
D. whether        
D. impact         
D. agreed         
D. surprise       
D. emotions       
D. made up       
D. test          
D. retirement    
D. community     
查看答案
题型：单项选择题

关于急性胰腺炎的治疗原则，叙述错误的是（）

A.急性胰腺炎（AP）早期阶段建议外科手术治疗

B.营养支持疗法，纠正水、电解质紊乱，防止局部及全身并发症，维护脏器功能和内环境稳定

C.非胆源性AP不推荐预防性使用抗菌药物，胆源性轻症急性胰腺炎（MAP）或伴有感染的中度、重度AP应常规使用抗菌药物

D.抗生素应用应遵循“降阶梯”策略，选择抗菌谱为针对革兰阴性菌和厌氧菌为主、脂溶性强、有效通过血-胰屏障的药物

E.要注意真菌感染，临床上出现无法用细菌感染解释的发热等表现时，应考虑真菌感染可能，可经验性应用抗真菌药，同时进行血液或体液真菌培养
查看答案
微信公众账号搜索答案