050期:半数【《01,02,05,07,08,09,17,19,21,22,23,24,26,28,29,30,32,33,35,40,44,46,47,49》】开:05准
051期:半数【《01,02,04,05,10,11,12,13,15,19,21,22,23,25,26,33,38,39,40,41,42,43,45,49》】开:49准
052期:半数【《01,07,08,10,13,15,16,19,20,21,22,23,25,26,27,28,30,32,37,42,44,46,47,48》】开:10准
053期:半数【《03,13,15,16,17,20,21,22,24,26,28,30,31,32,34,38,39,40,43,44,46,47,48,49》】开:？？？？