1.    
       
      
       
              
2.     
       
           
3.    
     
    
           He 
4.     
       
       
            ( )
5.         
        
         
       
         
6.     
        
       
        
                
7.     
             
8.     
           
             
9.    
      
       
      
     
           
10     
             
11.       
      
          
 12.    
      
      
      
                      
13.   
   
   
          