048期:半数【《01,02,06,13,14,17,20,21,22,23,24,25,29,31,32,37,38,39,41,43,46,47,48,49》】开:24准
049期:半数【《02,03,04,07,09,15,16,18,19,20,21,26,28,34,35,36,38,39,41,44,45,46,47,48》】开:13错
050期:半数【《01,04,05,06,07,10,12,14,15,18,19,22,23,27,28,29,30,31,32,39,41,45,47,49》】开:23准
051期:半数【《05,07,08,10,13,14,15,16,19,20,21,26,28,29,30,32,34,35,37,39,40,41,44,48》】开:01错
052期:半数【《02,03,04,05,07,08,10,11,12,17,21,23,25,27,29,30,34,35,37,39,46,47,48,49》】开:？？？？