271期：（（01,03,04,09,11,16,17,27,29,31,35,36,42,44,47,48））开：35准
272期：（（01,02,05,18,19,21,22,25,29,32,33,35,40,43,48,49））开：02准
273期：（（03,06,07,10,14,15,16,17,20,29,35,40,44,46,47,48））开：05错
274期：（（01,02,07,08,14,16,17,18,20,21,33,35,36,37,41,43））开：33准
275期：（（02,03,08,09,11,13,14,18,20,31,36,37,39,41,43,45））开：//