309期：<<09,10,13,14,23,24,26,30,34,38,40,41,44,45,46,49>>开：09中中中
310期：<<05,06,08,09,13,14,16,19,23,25,26,27,34,37,38,43>>开：04错错错
311期：<<09,11,15,16,18,20,22,24,26,35,37,40,41,42,45,47>>开：21错错错
312期：<<02,07,08,14,16,21,22,26,29,30,33,38,40,43,45,47>>开：中？