问题 单项选择题

易导致低渗性脱水的为( )

A.大量出汗
B.高热
C.弥漫性腹膜炎
D.大量腹水
E.应用大量噻嗪类利尿药、利尿酸或速尿

答案

参考答案:E

解析: 噻嗪类利尿剂、利尿酸和速尿,抑制肾小管髓袢升支粗段对Na+、Cl-的重吸收,使之随尿液排出体外,体内细胞外液Na+、Cl-减少,渗透压低,水排出过多而脱水,造成低渗性脱水。

完形填空
完形填空。
      One of the most important ways to help plants and animals is to protect their habitats (栖息地).
There they can live   1   too much interference (干涉) from humans. It is also important to    2   habitats
outside reserves.
      You can visit a nearby national park or a(n)    3    reserve. Some national parks have   4     guided
tours. Talk to the rangers (护林员) to find out whether animals are in danger and   5   people protect
them. For example, you and your friends
        6   help the rangers with  their work. If you have friends on farms,      7   them to keep patches
(小块地) of bush as wildlife habitats and to leave old trees standing, especially those with hollows (洞)
suitable for nesting animals. Some groups
       8   local lands and nature reserves. They do this by removing weeds and planting local native
species in their places. You could join one of these groups, or    9  start a new one with your parents
and your friends. Remove rubbish and replant trees; all these will also encourage native animals to   10   .
( )1. A. without  
( )2. A. keep
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( )4. A. special  
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( )8. A. look into
( )9. A. even  
( )10. A. sleep  
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B. ever      
B. die      
C. for  
C. save
C. nature  
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D. leave    
D. country  
D. clean    
D. what      
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D. move      
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