问题 问答题 简答题

什么是维管组织?植物界各大类群中维管植物包括哪几类?

答案

参考答案:

维管组织是由木质部和韧皮部共同组成的在植物体内主要起输导作用的一种复合组织,维管植物是指具有维管系统是植物,包括蕨类植物、裸子植物和被子植物。

完形填空
完形填空。
     Zhang Jun is a Chinese   1  . He is not young, but he is not   2  . He is thirty-nine. He has a daughter.   3 
 name is Zhang Li. She is   4    5   is a Chinese girl. And she is a student. She   6   very lovely (可爱的). She
is in   7   Three, Grade One. She likes   8   because (因为) she likes the sky (天空). And she   9   dance. Mr
Zhang teaches English.  10  his class, there are forty-two  11 . They are all  12  students. His wife (妻子),  13  
Zhang, is a teacher, too. Today is Sunday. They needn't (不必) go to  14  15  is free (有空) in Mr. Zhang's
family.
( )1. A. worker   
( )2. A. good     
( )3. A. He       
( )4. A. eight    
( )5. A. His      
( )6. A. is       
( )7. A. class    
( )8. A. apples   
( )9. A. can      
( )10. A. At      
( )11. A. boy     
( )12. A. fine    
( )13. A. Miss    
( )14. A. the work
( )15. A. Every   
B. policeman   
B. old         
B. His          
B. thirty-two 
B. She           
B. am           
B. Class        
B. dancing    
B. likes         
B. In          
B. girl         
B. good        
B. Mr.          
B. work       
B. Every one     
C. student       
C. young       
C. He’s          
C. double eleven  
C. He              
C. are           
C. Grade         
C. blue        
C. is               
C. On             
C. students      
C. Well          
C. Mrs.          
C. a work        
C. Everyone  
D. teacher          
D. friend              
D. Her               
D. double sixteen            
D. Her                 
D. has               
D. grade               
D. chairs            
D. do like            
D. Of                    
D. boy and girl    
D. OK                   
D. Ms                 
D. works             
D. One             
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