问题 多项选择题

土层锚杆支护中,锚杆的种类形式常用的有()

A.一般灌浆锚杆

B.扩孔灌浆锚杆

C.压力灌浆锚杆

D.重力灌浆锚杆

E.重复灌浆锚杆

答案

参考答案:A, B, C, E

完形填空
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
单项选择题