217期:〓〓半数02,04,08,11,12,14,16,17,19,24,26,27,29,30,35,37,39,41,43,44,45,47,48,49》开26准
218期:〓〓半数01,02,03,09,10,11,16,17,18,20,22,23,24,25,26,30,31,33,34,38,41,45,47,49》开17准
219期:〓〓半数04,05,06,07,11,12,13,15,17,19,20,25,26,27,28,29,30,35,39,40,43,44,46,49》开43准
220期:〓〓半数01,03,05,07,08,09,12,15,20,22,24,27,28,29,31,32,37,38,39,41,42,44,45,49》开？？