wKk  
020期：02,05,06,12,14,16,18,20,22,25,26,27,28,30,32,34,38,39,40,41,45,46,47,48,（共24个）开12对 G`
6U t  
021期：02,04,05,07,10,14,17,18,20,28,30,33,35,36,38,40,41,42,43,44,45,46,47,49,（共24个）开42对 uKpl+>  
022期：02,04,06,10,14,17,18,24,25,26,27,28,30,32,35,36,37,39,40,41,43,45,46,47,（共24个）