296期:半数【《01,03,04,05,09,11,15,16,17,18,22,23,25,26,27,30,32,33,35,40,42,44,46,48》】开:22准
297期:半数【《03,06,07,09,10,11,12,14,21,25,27,28,32,33,35,36,39,40,41,43,45,46,48,49》】开:44错
298期:半数【《01,02,04,08,12,13,14,15,17,23,26,27,28,29,31,32,33,34,36,37,39,41,45,47》】开:23准
299期:半数【《01,02,08,10,12,14,15,19,20,21,23,28,29,31,34,37,38,40,41,42,43,45,47,49》】开:49准
300期:半数【《02,03,06,07,08,09,12,13,14,15,16,17,20,21,22,24,27,31,34,38,39,43,46,49》】开:40错
301期:半数【《01,02,04,06,09,10,11,15,16,20,21,24,25,26,27,28,31,35,38,40,43,47,48,49》】开:？？？？