317期：≌【24】≌《02,06,11,12,13,18,19,20,23,24,26,27,28,29,30,31,32,33,34,35,38,40,42,47》开：18对
318期：≌【24】≌《01,03,07,11,12,13,14,15,19,20,23,25,27,28,30,32,35,39,40,41,42,43,44,49》开：06错
319期：≌【24】≌《01,05,06,07,08,10,11,13,14,15,18,20,23,26,27,29,31,32,39,41,42,43,45,46》开：45对
320期：≌【24】≌《03,04,06,07,10,11,13,15,19,20,21,23,24,25,29,30,32,33,35,36,41,42,47,49》开：//