                       
             
                                                                 
                12                
                                                                                                 
                                          2010                 73                                                             1978 1980                                                                 
                                                                                                                      42                                                                                         
                                                                                                78 12                                    
        
                                                                                                                                      
             
                  
                   
                 

               
                     
                  
                 
                          
                 
                    2010 12 17   



                          