307期：大围：02,08,09,13,15,16,19,20,21,22,23,29,31,32,33,34,35,36,38,40,41,42,43,49（共半数）开20准
308期：大围：01,03,06,07,09,12,16,18,20,23,24,25,27,29,30,34,38,40,41,42,43,46,48,49（共半数）开39错
309期：大围：03,04,06,07,08,10,11,15,17,18,21,25,26,27,31,35,37,38,39,41,44,45,47,48（共半数）开06准
310期：大围：02,04,08,10,11,12,13,17,20,21,22,23,26,27,30,31,33,35,38,40,41,44,45,46（共半数）开？？√【？中？】