274期：((01,02,03,07,08,10,12,20,25,26,29,33,35,36,44,48))开：33中中中
275期：((04,05,06,12,17,20,21,24,25,31,36,38,40,46,47,48))开：17中中中
276期：((01,03,08,10,13,15,16,19,23,35,37,38,39,43,45,49))开：14错错错
277期：((01,10,13,16,17,19,22,24,27,28,30,37,41,46,47,48))开：11错错错
278期：((09,11,12,13,17,18,19,21,32,33,34,35,37,43,47,49))开：==？