307期:《《02,03,06,09,16,17,19,25,30,38,39,41,42,44,46,48》》开:03√
308期:《《06,11,12,13,15,17,21,22,27,30,31,32,43,46,47,49》》开:22√
309期:《《01,02,05,06,07,10,12,17,21,30,32,33,37,40,43,47》》开:09x
310期:《《01,04,09,11,13,16,23,27,29,30,32,35,36,39,43,48》》开:04√
311期:《《04,05,07,09,11,14,17,18,20,22,30,39,40,44,45,49》》开:中?