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问题 选择题

对于某一可逆反应，改变下列条件，一定能使化学平衡发生移动的是（　　）

A．增加某反应物的质量

B．使用催化剂

C．降低反应体系的压强

D．升高温度

答案

A．如反应物为固体或纯液体，则改变反应的量不影响平衡移动，故A错误；

B．催化剂不改变平衡状态，故B错误；

C．如反应前后气体的体积不变，降低反应体系的压强平衡不移动，故C错误；

D．化学反应伴随着能量的变化，升高温度平衡向吸热方向移动，故D正确．

故选D．

完形填空
完形填空。

     It's never easy to admit (承认) you are in the wrong. We all    1_ to know the art of apology (道歉).
Think how often you have done wrong. Then count how many   2_ you have expressed clearly you were
_3_. You can't go to bed with an easy mind if you do _4_ about it.
     A  doctor  friend,  Mr. Lied, told  me  about  a  man  who came to him  with  diffident kinds of signs:
headaches, heart trouble and insomnia (失眠症).   5_some careful exams, Mr. Lied found nothing wrong
with him and said, " If you don't tell me  what's   6_ you, I  can't  help you." The  man  admitted  he  was
cheating (骗取) his brother to his inheritance (遗产). Then and there the clever doctor   7_ the man write
to his brother and _8_ his money. As soon as the  letter  was  put into the  post  box,  the  man  suddenly
cried, " Thank you," he said to the doctor " I think I have got well."
     An apology can not only save a broken relationship (关系), but also make a person   9_. If you can
think of someone who should be   10_ an apology from you, do something about it right now.

( )1.A. decide    
( )2.A. mistakes  
( )3.A. sorry    
( )4.A. something    
( )5.A. Before    
( )6.A. hurting  
( )7.A. made      
( )8.A. give      
( )9.A. happy    
( )10.A. received 		B. have    
B. people  
B. weak    
B. anything         
B. After   
B. hanging
B. helped  
B. keep    
B. glad    
B. given   		C. need    
C. ways    
C. sad    
C. nothing              
C. Till    
C. touching
C. let    
C. return  
C. strong  
C. known   		D. try        
D. times      
D. wrong      
D. everything                     
D. Since      
D. worrying  
D. saw        
D. send      
D. healthy    
D. forgotten  
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单项选择题

工伤保险基金按伤残等级支付一次性伤残补助金，（）级伤残为25个月的本人工资。

A.一

B.二

C.三

D.四
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