问题 单项选择题 B1型题

急性有机磷农药中毒,中度中毒是()。

A.血胆碱酯酶活力<10%

B.血胆碱酯酶活力<20%

C.血胆碱酯酶活力<30%

D.血胆碱酯酶活力>50%

E.m胆碱酯酶活力30%~50%

答案

参考答案:E

解析:急性有机磷农药中毒,轻度中毒血胆碱酯酶活力>50%;急性有机磷农药中毒,中度中毒血胆碱酯酶活力30%~50%;急性有机磷农药中毒,重度中毒血胆碱酯酶活力<30%。

完形填空
完形填空。
     A rich father wanted to show his son how poor people can be. One day, he took his young son __1__
  a trip to the country. They __2__ a day and night in the farm of a very __3__ family. When they got back
  from their trip the father asked his son, "how was the __4__ ?"
     "Very good, Dad!"
     "Did you see how poor people can be?" the father asked.
     "Yeah!"
     "And what did you __5__ ?"
     The son answered, "I saw that we have a dog at home, but they have four. We have a pool that
 reaches to the middle of the garden. They have a small river that has no __6__ . We have expensive
 lamps in the garden, but they have the __7__ . Our…"
     When the little boy was finishing, his father was __8__ .
     His son added, "Thanks, dad, for showing me __9__ poor we are!"
     Isn't it true that it all depends on the way you look at things? If you have love, friends, family, health,
 good humor and a positive attitude (积极的态度) toward life, you've got __10__ !
( ) 1. A. on          
( ) 2. A. took        
( ) 3. A. rich         
( ) 4. A. trip         
( ) 5. A. say         
( ) 6. A. top          
( ) 7. A. suns         
( ) 8. A. wordless     
( ) 9. A. what        
( ) 10. A. nothing    
B. in      
B. paid    
B. poor    
B. idea    
B. learn    
B. bottom  
B. stars      
B. happy    
B. how      
B. something  
C. at      
C. spent    
C. good    
C. way      
C. remember  
C. end      
C. tents    
C. excited  
C. why      
C. anything  
D. to            
D. cost          
D. happy        
D. life          
D. write        
D. cover        
D. cages        
D. pleased      
D. when          
D. everything    
单项选择题 B1型题