277期：≡十拿九稳《04,07,08,09,10,11,15,16,17,18,19,21,22,23,26,30,31,32,35,39,41,43,44,49》开：11中
278期：≡十拿九稳《05,08,09,10,13,15,16,21,24,25,26,27,31,33,34,36,37,38,42,44,45,47,48,49》开：02错
279期：≡十拿九稳《02,03,04,05,07,08,10,13,14,15,16,20,21,26,27,29,31,32,33,36,37,41,45,49》开：10中
280期：≡十拿九稳《03,04,06,07,10,11,12,13,16,17,27,28,30,31,32,33,34,40,43,44,45,46,47,49》开：88