试题与答案

旅游环境容量

题型:名词解释

题目:

旅游环境容量

答案:

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参考答案:对

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题型:完形填空
完形填空
     Laughter and tears are part of living. But do you find enough time for laughter? I am not asking if
you__1__lots of good times. __2__we should laugh during the happy times. But do you also laugh
during the__3__times?
     Erma Bombeck is known for her humorous books, but she wrote one that__4__a more serious
topic:__5__in children. Erma talks with many children with cancer and learns__6__life lessons from
them. She learns, for instance, that cancer survivors know how to__7__.
     She __8__the experience of 15yearold Jessica from Burlinton. Jessica's leg was cut off at the knee
because of cancer. She was learning to__9__a prosthesis(假肢). Jessica tells about playing__10__. She
kicked the ball__11__and it flew off in one__12__while her artificial leg flew into another. She fell on
the__13__and laughed.
     Jessica may not have laughed about her cancer,   but she laughed about handling the__14__of it.
And her laughter helped her a deal.
     There is the story of 17yearold Betsy. She __15__her way to the radiation room for her regular
radiation therapy(化疗). As __16__, she dropped her hospital gown and, wearing only her birthday
suit, __17__onto the table and waited. The extra people in the room were not the medical students she
had thought, but __18__painters giving an estimate on painting! Betsy laughed heartily about the
incident. And like Jessica, her__19__to laugh helped her to deal with one of the most difficult thing a
young person can endure-cancer.
     Do you find plenty of__20__for laughter? You can…if you also find reasons to laugh during the
especially difficult times.
     Survivors know how to laugh. If you can laugh even when the going is rough, you'll make it. And
you'll smile at the end.
( )1. A. lose        
( )2. A. Of course  
( )3. A. ordinary    
( )4. A. connected  
( )5. A. cancer      
( )6. A. serious    
( )7. A. cry        
( )8. A. describes  
( )9. A. put        
( )10. A. basketball
( )11. A. gently    
( )12. A. way        
( )13. A. floor      
( )14. A. cause      
( )15. A. fought    
( )16. A. common    
( )17. A. climbed    
( )18. A. also      
( )19. A. strength  
( )20. A. times      
B. miss        
B. In addition
B. difficult  
B. reported    
B. disability  
B. important  
B. shout      
B. learns      
B. have        
B. badminton  
B. hard        
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B. took        
B. often      
B. lay        
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B. willingness
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C. keeps      
C. wear      
C. volleyball
C. slightly  
C. direction  
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C. before    
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D. laugh        
D. First of all  
D. usual        
D. covered      
D. laughter      
D. thoughtful    
D. face          
D. imagines      
D. make          
D. soccer        
D. straightly    
D. point        
D. bed          
D. end          
D. pushed        
D. usual        
D. sat          
D. almost        
D. confidence    
D. moments      
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下图为氯化钠、碳酸钠(俗称纯碱)在水中的溶解度曲线,请回答问题。

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(2)20℃时,碳酸钠饱和溶液中,溶质与溶剂的质量比为     

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(4)向氯化钠、碳酸钠的混合溶液中加入一定量的氢氧化钙溶液,会发生如下反应:Na2CO3 + Ca(OH)2 = CaCO3↓+ 2NaOH,反应后溶液中溶质的组成为(写出所有可能)      

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