307期：（（01,03,04,07,13,16,24,29,31,33,36,45,46,47,48,49））开：03准
308期：（（02,05,06,09,10,15,16,20,21,22,26,30,32,33,34,38））开：22准
309期：（（01,03,13,18,19,20,30,31,32,34,37,39,43,46,47,49））开：09错
310期：（（01,02,09,13,16,18,19,20,21,22,25,30,43,45,47,49））开：04错
311期：（（05,15,20,21,25,27,32,35,37,39,40,42,43,44,48,49））开：//