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问题 单项选择题

根据骨牌理论提出的防止事故措施是( )。

A．防止能量失控转移
B．防止人、物运动的时空交叉
C．从骨牌顺序中移走某一个中间骨牌
D．从事故模型中移走最后一个表示事故发生的图形

答案

参考答案：C

解析： 根据骨牌理论提出的防止事故措施是从骨牌顺序中移走某一个中间骨牌。

完形填空
从A、B、C、D中选择最恰当的选项填进文章中去，你会读到一个有意思的故事。

      Do you like pop music? Most people do. One of the best     1    on the music scene is the New Ocean
Waves. In the     2    twelve months, they've had three major    3    and made a hit CD. They're going to
appear on CCTV next month. And then they're going to go on a world tour in which they will    4    in ten
different cities. Be sure not to     5    them if they come to a city near you-if you can    6    tickets.
     "For years, we played other people's songs", says leader singer Zhu Wen. "But now we play mostly    7    
own songs. We've had a few songs in the top ten, but we really hope to have a number one hit     8   ."
Good luck to the New Ocean waves. They're off to a great start. And they' re really nice people. Did you
know that they    9    half of the money they made to a charity for    10    children?

( )1. A. singers    
( )2. A. last       
( )3. A. matches    
( )4. A. show       
( )5. A. miss       
( )6. A. find       
( )7. A. our        
( )8. A. some day  
( )9. A. received   
( )10. A. happy     		B. classes 
B. coming  
B. concerts 
B. perform  
B. meet     
B. give    
B. their    
B. one day  
B. had               
B. sad     		C. bands   
C. present  
C. meetings 
C. dance     
C. see       
C. see      
C. her      
C. future           
C. gave     
C. lovely   		D. players   
D. next      
D. parties 
D. visit     
D. watch       
D. get                        
D. his        
D. last year  
D. got        
D. homeless 
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填空题

计算：[（-y5）2]3÷[（-y）3]5•y3=______．
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