问题 判断题

雷电时间短,一般雷击分为3个阶段,即先导放电、主放电、余光放电。

答案

参考答案:对

完形填空
完形填空。
     This is a __1__ of Jim's family. The man __2__ the picture is Jim's father, Peter. There __3__ a
woman __4__ Jim. __5__ is Jim's mother, Gina. Who __6__ this boy and __7__ girl? The __8__ is
Jim, Peter's son. The girl is Kate, Peter's __9__. Kate is Jim's sister. Jim and Kate are __10__.
( ) 1. A. room      
( ) 2. A. of        
( ) 3. A. is        
( ) 4. A. behind    
( ) 5. A. His        
( ) 6. A. is        
( ) 7. A. x          
( ) 8. A. boy        
( ) 9. A. aunt      
( ) 10. A. brothers  
B. picture      
B. on          
B. are          
B. under        
B. He          
B. are          
B. a            
B. girl        
B. daughter    
B. sisters      
C. map                  
C. in                    
C. isn't                
C. at                    
C. Her                  
C. love                  
C. the                  
C. man                  
C. cousin                
C. brother and sister    
D. book                
D. at                  
D. aren't              
D. on                  
D. She                  
D. see                  
D. this                
D. woman                
D. sister              
D. sister and brother  
材料题