问题 单项选择题 A1/A2型题

吸氧疗法改善下列何种病变引起的缺氧效果最佳()

A.严重缺铁性贫血

B.先天性心脏病而致右-左分流

C.肺间质纤维化

D.氰化物中毒

E.亚硝酸盐中毒

答案

参考答案:C

解析:吸氧能提高动脉血氧饱和度和氧分压而增加动脉血氧含量,故对外呼吸功能障碍引起的低张性缺氧疗效果最好。

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     Two soldiers both seriously wounded in a war shared the same hospital room. One man was __1__
to sit up in his bed for an hour a day. His bed was next to the room's only window. The other man had to
spend all his time lying on his back on the only other bed in the room.
     Every afternoon when the man by the window could sit up and describe what he saw outside the
window, the man in the other bed would relive. The window  __2__   a park with a lovely lake, the man
had said. Ducks and swans played on the water while children   __3__  their model boats. Hearing the
description, the soldier on the other side of the room imagined the beautiful   __4__ with his eyes closed.
     One warm afternoon, a strange thought   __5__  the soldier: Why should his roommate have all the  
__6__   of seeing everything while he never got to see anything? It seemed   __7__. The man felt
ashamed at first, but gradually his   __8__  turned into hatred and soon turned him bitter and angry. He
found himself unable to sleep. He should be by that window and this only thought now   __9__  his life.
     One day the man by the window died and the body was taken away.   __10__   it seemed
appropriate, the man asked the nurse if he could be moved next to the window. The nurse was happy to
make the   __11__   and after making sure he was comfortable, she left the room.
     Slowly and painfully, he supported himself on one elbow to take his first look out of the window.
However, he saw nothing but a blank and dirty wall…
     So the pursuit of   __12__   isn't a gift coming through the window. It's a positive attitude we
consciously choose to express. Our circumstances are just a small part of what makes us joyful. If we
wait for them to get it just right, we'll never find lasting joy.
( )1. A. supposed      
( )2. A. overlooked  
( )3. A. designed 
( )4. A. environment  
( )5. A. happened to  
( )6. A. possibility  
( )7. A. unfair  
( )8. A. curiosity  
( )9. A. controlled  
( )10. A. Although 
( )11. A. difference 
( )12. A. success  
B. determined
B. associated
B. created
B. region
B. reached for
B. pleasure
B. mistaken
B. despair
B. affected
B. Once
B. promise
B. fortune
C. encouraged 
C. faced
C. sailed  
C. view   
C. occurred to   
C. privilege  
C. helpless  
C. admiration  
C. destroyed  
C. Since 
C. switch  
C. health  
D. allowed
D. reflected
D. displayed
D. scene
D. came to
D. capability
D. unnatural
D. envy
D. enriched
D. Before
D. effort
D. happiness
单项选择题