问题 单项选择题 A1/A2型题

在制备盐酸异丙肾上腺素气雾剂时,加入乙醇的作用是()

A.抗氧剂

B.助溶剂

C.潜溶剂

D.分散剂

E.助悬剂

答案

参考答案:C

解析:盐酸异丙肾上腺素在F12中溶解性能差,加入乙醇做潜溶剂,维生素C为抗氧剂。所以答案为C。

完形填空
完形填空。
     Twelve years ago, my mother gave birth to the beautiful little girl.    1   , we were later given the 
   2   that this little girl, who was three and a half month old, would only have 14 days on earth. It's
hard to understand what kind of   3   you have when you find out that you're   4   something that you
don't even know.
     As time went on, the number of days kept growing, which gave us    5  . When the doctors said
that we could take her home, that was    6   reality hit. We had no    7   .
     I'm from a small town with small hospitals, but when you don't have money, you just don't   8  it.
My mother tried for days to get money, but nothing   9   each time. A caseworker (社会工作者) was
even doing her best. It's   10   that it almost felt as if we had to   11  a baby from the hospital.
     One day the caseworker walked into her boss's office to   12 again. As she walked out, 13   down
yet again, out of no where a man walked up to her. He   14   her a handful of money and said, "Please
give this to the lady in   15  , so she can take her daughter home." She looked down at her hand with
tears in her eyes. As she looked back up to thank him, he was 16   . They searched all over the hospital
and he was nowhere to be   17   .
     Thanks to the guy that I will   18  know, we could take home that    19   baby girl that was only given
14 days to live, and celebrated her 12th birthday yesterday. I am grateful to this man and feel that his act
of  20   should be shared with everyone.
( ) 1. A. Besides  
( ) 2. A. idea  
( ) 3. A. character  
( ) 4. A. losing  
( ) 5. A. hope  
( ) 6. A. how    
( ) 7. A. car    
( ) 8. A. understand  
( ) 9. A. came up  
( )10. A. interesting
( )11. A. save  
( )12. A. apologize  
( )13. A. let    
( )14. A. took  
( )15. A danger    
( )16. A. gone  
( )17. A. avoided  
( )18. A. even  
( )19. A. beautiful  
( )20. A. courage
B. Otherwise
B. news  
B. friendship
B. wasting  
B. freedom  
B. where  
B. knowledge
B. have  
B. set up  
B. necessary
B. buy  
B. research  
B. moved  
B. paid  
B. need  
B. shy  
B. found  
B. still  
B. naughty  
B. gentleness
C. However  
C. order  
C. habit  
C. explaining  
C. trouble  
C. when    
C. shelter  
C. change  
C. made up  
C. impossible  
C. visit  
C. try  
C. knelt  
C. handed  
C. reward  
C. disappointed
C. persuaded  
C. almost  
C. nervous  
C. kindness  
D. Therefore    
D. point        
D. feeling      
D. gaining      
D. information  
D. whether      
D. money        
D. prevent      
D. gave up      
D. sad          
D. develop      
D. interview    
D. fell        
D. lent        
D. advance      
D. proud        
D. stopped      
D. never        
D. dangerous    
D. politeness  
单项选择题