       25  
                              2B                                       
⑴     25  
       11~16     
 
   
a.                                                                          
                                                                                           
                                                                                                                                                                                                                                                             
b.                            
                                                                                                                   
                 
                                                                
                                                                        
c.                                                                                                                                                                                                                    
    
      
   
      
              
13.             4  
①     
②  
14.         4  




15.                  6  




16. b             4  




17. c                     4  




18.             5  




⑵        27  
       13~18     

  
                                                                                                                                                      7      
                        1980   9    18    16                                                           
                                                                                                                         
                                            7            15   16           
                                                                                        
        2.5      60        50                                                    0.5~1         2~3.5                      7~8            
                                                                                                                  
                                                       

13.             4  
①   
②    
14.                   4  




15.              6  





16.             4  




17.              4  




18.                5  