280期:必出单双===【单】数===开:??准

279期:必出单双===【双】数===开:30准

277期:必出单双===【双】数===开:48准

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269期:必出单双===【双】数===开:44准

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264期:必出单双===【单】数===开:47准

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260期:必出单双===【单】数===开:21准