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