049期:半数【《04,05,06,08,11,12,13,16,18,21,23,24,25,28,29,30,34,36,39,41,44,45,46,49》】开:44准
050期:半数【《01,02,06,07,08,09,10,11,19,22,23,24,25,27,31,33,34,36,40,41,43,45,47,49》】开:42错
051期:半数【《03,04,05,06,07,08,11,12,14,16,18,22,24,28,29,30,31,34,39,41,42,45,46,47》】开:24准
052期:半数【《02,08,10,12,13,14,15,16,21,22,23,31,32,33,34,35,36,37,39,42,43,45,46,48》】开:？？？？