问题 单项选择题

糖化血清蛋白测定可用于反映机体血糖平均水平的时间段为()

A.2~3周

B.4~5周

C.6~7周

D.8~9周

E.10~14周

答案

参考答案:A

解析:血清白蛋白在高血糖情况下同样发生糖基化。由于白蛋白的半衰期约为17~19天,故测定糖化血清蛋白可反映2~3周的血糖平均水平。

完形填空
完形填空。

       Someday little cars may take the place of today's cars. If everyone   1  
such a little car in the future, and less pollution in the air, there will be more
parking space in cities,and the streets will be   2   crowded.The space now
for one car of' the usual size can hold    3one such little car.
      The little cars will   4   much less to own and to drive. Driving will
be    5    too, because these little cars can go only 50 kilometres an hour.
The cars of the future will be fine for going   6 the city, but they will not
be useful for going far away.The little car needs  only  two  batteries (电池)
 —one  battery for the motor, and    7    for the horn and the lights.If we
still   8    the big cars along with the small ones,we will need to   9  two
kinds of roads. Some roads will be used    10   the big fast cars, and others
will be  needed for the  small , slower ones.

( )1. A. drives  
( )2. A. more    
(     )3. A. at most 
(     )4. A. pay    
(     )5. A. faster  
(     )6. A. over    
(     )7. A. another
( )8. A. think  
(     )9. A. build  
(     )10.A.to      

B. sits
B. less 
B. no more  
B. spend    
B. harder  、
B. around  
B. one   
B. use     
B. put     
B. as      

 C. makes   
 C. much 
 C. less than
 C. cost    
 C. safer   
 C. from   
 C. the other 
 C. park    
 C. found   
 C.for      

D. sells 
D. fewer     
D. more than     
D. have        
D. more dangerous  
D. past           
D. others     
D. drove    
D. open        
D.in              

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