22.(1)(1分)                                                                                                                                   

       (1分)                      

   (2)(1分)                  (1分)                                  

   (3)(1分)                  (1分)                                    

   (4)(1分)                                          

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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