    2012          QQ                                                                   

                      
                       
                             
              

                              
                    
                                          
                      
                               
               
                                               
  1   2              
                               
                  
                               
              
                                                                  
 1         2                    
                                        
                    
                  
               
                                 
               
                          
              
               
                     
                     
                       
              
    =100                        
              
                                         
                     
                  
                      
                                           
                       
                                 
                    
                                       
                
                                  
               
                                        
                 
                     
         
                                       
              
                               
               
                   

                
 
                                               
             