307期：《《02,06,09,13,15,16,17,19,20,21,27,30,33,34,41,46》》开：20√
308期：《《01,02,03,07,11,14,15,19,25,28,31,32,46,47,48,49》》开：39x
309期：《《11,13,20,22,24,25,30,36,37,39,40,41,43,44,45,49》》开：06x
310期：《《03,05,06,10,13,14,16,23,26,31,33,35,40,43,44,49》》开：16√
311期：《《01,03,04,06,11,14,15,17,18,20,32,36,37,41,45,47》》开：中？