     
  
2020/10/19
                                                          

   ◇               

 2.5             

              

                

   ◇               

   1/6           

                

          

 

   ◇               

              

               

  18%           

               

  

   ◇                

               

           

        

   

   ◇             

       β       

            

               

  48%    

   ◇              

            

              

               

  

                

   

   ◇               

B12                

      B12       

      B12         

                

   ◇               

              

      

   

   ◇              

              

               

            89% 

         63%    

              

               

       

 

        