018期:半数【《01,02,05,06,10,12,16,19,20,21,24,25,27,30,31,33,34,36,40,42,43,45,46,49》】开:31准
019期:半数【《01,05,11,12,13,14,16,18,22,23,25,26,27,31,32,33,34,36,38,39,40,42,43,48》】开:40准
020期:半数【《03,04,05,07,10,12,13,14,18,20,21,23,27,28,29,30,32,34,35,36,37,39,46,48》】开:10准
021期:半数【《01,02,03,05,06,07,08,09,11,13,15,16,21,23,26,27,28,31,33,38,39,44,46,47》】开:07准
022期:半数【《02,03,04,06,07,09,10,12,15,16,19,23,25,27,31,33,34,35,36,40,44,45,48,49》】开:18错
023期:半数【《02,04,05,06,07,09,10,11,13,16,17,21,22,25,26,27,31,35,36,37,39,40,41,44》】开:01错
024期:半数【《02,03,06,09,10,12,13,14,17,19,20,22,23,26,28,30,32,34,39,42,44,45,46,49》】开:？？？？