275期：精准特围20码：{18,12,19,02,15,41,39,43,49,17,11,38,28,23,04,03,24,21,29,20}开（虎17）准
276期：精准特围20码：{28,30,20,44,02,35,03,22,46,21,36,25,31,05,32,37,45,14,16,39}开（蛇14）准
277期：精准特围20码：{47,10,08,20,21,12,27,02,44,05,39,13,30,04,11,14,49,16,22,46}开（猴11）准
278期：精准特围20码：{08,13,10,11,35,38,01,46,18,28,09,03,43,04,41,02,25,44,33,16}开（？00）准
