金属键

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问题:

金属键

考点:普通考研08工学(北京科技大学)材料科学基础真题2004年
题型:问答题
完形填空。
     There are two kinds of music in the world-one is written down and the other is not.  Many people
earn their living    l    music. They write songs for pop stars and music for films and TV plays. They
usually write exact insitutions on   2   the music is played.
     Folk music has been passed down from one generation(一代人) to another. At first it was never
written down. People _ 3 _ the songs from their families, relatives, neighbors and friends in the same
village. These songs were _4   country life, the seasons, animals and plants, and about love and .   5   in
people's lives.
     Early performers of music were popular and respected. They    6__learn hundreds of songs __7   .  
On festivals they used to act and sing in praise of heroes   8   lived long ago.  This was at a time _ 9     
there was no radio, TV or cinema. Many of the country people   10_  read nor write. In this way stories
were passed on from one person to another. This continues even today.
( )1. A. writing      
( )2. A. why          
( )3, A. learn        
( )4. A. about        
( )5. A. sad          
( )6. A. were, used to
( )7. A. with heart    
( )8. A. who          
( )9. A. where        
( )10. A. can neither
B. by writing  
B. when        
B. learnt      
B. to          
B. happy      
B. are using  
B. by heart    
B.whom        
B. in when    
B. can either  
C. in writing  
C. what        
C. are learning
C. for          
C. sorry        
C. used to      
C. to heart    
C. when        
C. that        
C. could neither
D. to write    
D. how        
D. studied    
D. into        
D. sadness    
D. usedn't to  
D. in mind                             
D. Which                       
D. when        
D. could either
题型:问答题

现金股利和股票回购具有相似之处,表现为()。

A、公司需支付一定数量的现金

B、公司需支付一定数量的股票

C、公司增加了资产

D、公司减少了资产

E、需支付较高的所得税款

题型:问答题

舵角限位器是为了防止()。

A.操舵时的实际舵角太大

B.操舵时的有效舵角太大

C.实际舵角超过最大有效舵角

D.实操舵角超过有效舵角

题型:问答题

一个单位或组织中能级最低的层次是()

A.决策层

B.操作层

C.管理层

D.执行层

题型:问答题

石油主要由以下两种元素组成。()

A.碳和氧

B.碳和氮

C.碳和氢

D.氢和氮

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