309期：【必中特围】:(01,03,06,07,10,11,12,14,15,22,23,24,25,27,32,36,37,38,39,40,43,44,48,49) ≮特开：44准
310期：【必中特围】:(02,03,09,10,11,12,13,14,15,17,18,20,24,25,29,30,31,32,36,37,41,43,45,46) ≮特开：19错
311期：【必中特围】:(01,02,04,08,09,16,18,19,20,21,24,25,26,31,32,33,35,36,37,38,39,41,43,46) ≮特开：？？√