数学题(四道简单奥数题等你来答)1/2009+2/2009+3/2009+…2008/20091×2+2×4+3×6+4×8…100×2001×3+2×4+3×5+4×6+…+15×171×3+3×5+5×7+7×9+…+17×19不要乱回答,有四道题全答完哦 我做了
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![数学题(四道简单奥数题等你来答)1/2009+2/2009+3/2009+…2008/20091×2+2×4+3×6+4×8…100×2001×3+2×4+3×5+4×6+…+15×171×3+3×5+5×7+7×9+…+17×19不要乱回答,有四道题全答完哦 我做了](/uploads/image/z/11689928-8-8.jpg?t=%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%88%E5%9B%9B%E9%81%93%E7%AE%80%E5%8D%95%E5%A5%A5%E6%95%B0%E9%A2%98%E7%AD%89%E4%BD%A0%E6%9D%A5%E7%AD%94%EF%BC%891%2F2009%2B2%2F2009%2B3%2F2009%2B%E2%80%A62008%2F20091%C3%972%EF%BC%8B2%C3%974%EF%BC%8B3%C3%976%EF%BC%8B4%C3%978%E2%80%A6100%C3%972001%C3%973%EF%BC%8B2%C3%974%EF%BC%8B3%C3%975%EF%BC%8B4%C3%976%EF%BC%8B%E2%80%A6%EF%BC%8B15%C3%97171%C3%973%EF%BC%8B3%C3%975%EF%BC%8B5%C3%977%EF%BC%8B7%C3%979%EF%BC%8B%E2%80%A6%EF%BC%8B17%C3%9719%E4%B8%8D%E8%A6%81%E4%B9%B1%E5%9B%9E%E7%AD%94%EF%BC%8C%E6%9C%89%E5%9B%9B%E9%81%93%E9%A2%98%E5%85%A8%E7%AD%94%E5%AE%8C%E5%93%A6+%E6%88%91%E5%81%9A%E4%BA%86)
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