281期：⑤不中{05,43,30,04,33}开？<对>
280期：⑤不中{27,47,33,42,24}开05 14 40 28 02 13 = 22 <对>
279期：⑤不中{44,02,47,27,31}开29 16 02 09 49 05 = 40 <错>)
278期：⑤不中{15,02,27,44,04}开28 38 46 02 23 31 = 07 <错>)
277期：⑤不中{16,44,30,14,24}开11 02 09 45 35 27 = 26 <对>
276期：⑤不中{17,42,28,05,03}开25 13 41 39 21 16 = 29 <对>
275期：⑤不中{04,38,21,28,27}开40 05 09 49 25 30 = 41 <对>
274期：⑤不中{12,32,05,10,21}开41 16 28 23 29 35 = 49 <对>