052期:半数【《01,02,07,10,13,15,16,17,21,22,23,25,27,29,31,32,33,35,37,39,41,42,47,48》】开:22准
053期:半数【《01,02,03,05,07,10,12,16,17,18,19,23,24,26,27,28,29,30,31,32,34,37,38,43》】开:31准
054期:半数【《05,06,08,09,10,11,13,17,19,20,21,25,27,32,35,36,37,38,39,43,45,47,48,49》】开:18错
055期:半数【《03,08,11,13,15,17,18,19,22,23,25,26,28,29,32,33,34,37,38,41,44,47,48,49》】开:？？？？