问题 单项选择题

螺杆泵流量不足时,不能解决问题的方法是()。

A、降低液面高度

B、清洗滤网

C、疏通管道

D、提高油品温度

答案

参考答案:A

完形填空
完形填空。
     Today is March 7th, and tomorrow is __1__. Dally wants __2__ her mother something. Dally __3__
10 dollars. She is thinking about __4__. She thinks and thinks. Then she has an __5__. "I can buy a card
__6__ my dear mother."
     Dallky goes to the supermarket and buys a beautiful card. She __7__ some words on it. She show it
to her mother and says, "Here is a card for you, mum." Her mother is __8__ happy. " __9__, Dally." She
says. Dally is __10__, too.  
( )1. A. Teachers'Day
( )2. A. to give    
( )3. A. have        
( )4. A. how to buy  
( )5. A. card        
( )6. A. with        
( )7. A. writes      
( )8. A. much        
( )9. A. Come on    
( )10. A. sad        
B. Christmas'Day      
B. give              
B. has                
B. what to buy        
B. idea              
B. at                
B. reads              
B. very              
B. It's March7th today
B. happy              
C. Women's Day          
C. giving              
C. is                  
C. how buy it          
C. hour                
C. of                  
C. hears                
C. real                
C. I buy a card for you
C. tall                
D. Womans'Day
D. to have  
D. buys      
D. what buy  
D. thing    
D. for      
D. says      
D. certain  
D. Thank you
D. angry    
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