307期:〓〓半数01,02,04,06,08,11,13,15,16,18,19,20,23,26,28,29,32,34,36,40,43,45,46,49》开20准
308期:〓〓半数03,04,06,07,08,09,12,13,16,19,21,24,25,26,27,30,31,34,36,39,40,46,48,49》开39准
309期:〓〓半数02,05,06,07,09,11,13,14,16,21,23,25,26,27,28,31,33,35,36,39,40,43,45,49》开06准
310期:〓〓半数01,03,06,07,08,10,11,14,15,20,23,24,27,28,29,30,34,35,38,40,41,42,44,46》开16错
311期:〓〓半数02,03,04,05,09,10,12,21,24,25,28,29,30,31,35,36,37,38,40,41,43,44,47,48》开37准
312期:〓〓半数03,04,08,10,11,12,14,16,18,19,20,24,26,29,32,33,34,36,42,43,44,47,48,49》开14准
313期:〓〓半数01,02,03,04,07,08,11,12,14,16,17,18,22,27,28,29,30,32,33,34,35,36,43,45》开38错
314期:〓〓半数01,07,11,12,13,14,15,17,18,19,20,24,26,27,32,35,36,37,40,41,43,44,45,48》开？？