279期：开号大包圍 开27准
01,04,07,08,09,12,13,18,19,22,24,25
26,27,28,31,33,34,36,37,44,45,46,49
280期：开号大包圍 开42错
02,03,04,09,10,11,16,17,18,19,21,25
26,27,28,29,33,36,37,38,41,44,45,48
281期：开号大包圍 开？准
03,10,12,14,15,16,17,18,20,21,22,26
28,29,31,33,35,38,42,43,44,46,47,49

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