问题 问答题 简答题

简述飞灰与沉降灰的区别。

答案

参考答案:随烟气进入烟道的燃料灰分统称飞灰,而在除尘器前烟道集灰斗内收集的飞灰称为沉降灰。

完形填空
完形填空。
     A lot of students are having all kinds of sports on the sports field. A football game is going on right
now    1    Class 3 and Class 4. We don't know which team will    2   . Look at those people over there!
Some students of Class 1 are practicing the    3    jump. One of them is the best high jumper in the school.
He practices hard every day. Many people think he will    4    the school record (记录) in the sports meet
next spring. Not far away from them, some girls are preparing for a race. They    5    have a 600-meter
race in ten minutes. Now on the corner of the field, you can see another group (群) of students. Their
teacher is telling them    6    to throw discus (铁饼).
     In schools,    7    students love sports now. Sports help people to keep    8   . They also help people to
live happily. And    9    doing sports on the sports field, many people will   10   good friends, too. Do you
think so?
( )1. A. in          
( )2. A. win        
( )3. A. long        
( )4. A. break      
( )5. A. were        
( )6. A. what        
( )7. A. much and much
( )8. A. health      
( )9. A. in          
( )10. A. become    
B. between    
B. winning    
B. far        
B. turn        
B. going to    
B. how        
B. most and most
B. tired      
B. before      
B. change      
C. from        
C. fall        
C. high        
C. leave      
C. were going to
C. which      
C. many and many
C. healthy    
C. after      
C. get        
D. of            
D. falling      
D. tall          
D. name          
D. will          
D. that          
D. more and more
D. happy        
D. over          
D. bring        
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