    
  
2020/10/23
                           1 ~ 4     0.6 ~0.8           500 ~ 1000       1500 ~ 2000    2500 ~ 3000                               1          1.5 ~ 2     60 ~ 80       6      8          18.2%                                                    
 
   
 
 
  
 
2014-2015 ©                      蒙ICP备05070829号