求8道奥数题答案(全部要有算式或过程)答案也不能少!1.所有适合算式7/18<n/5<20/7的自然数n之和为( )2.用1,5,5,5,凑24点(可凑分数),算式是( )3.已知a=2011/2012 b=20122011/20122012,比较大小,
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![求8道奥数题答案(全部要有算式或过程)答案也不能少!1.所有适合算式7/18<n/5<20/7的自然数n之和为( )2.用1,5,5,5,凑24点(可凑分数),算式是( )3.已知a=2011/2012 b=20122011/20122012,比较大小,](/uploads/image/z/2473134-6-4.jpg?t=%E6%B1%828%E9%81%93%E5%A5%A5%E6%95%B0%E9%A2%98%E7%AD%94%E6%A1%88%EF%BC%88%E5%85%A8%E9%83%A8%E8%A6%81%E6%9C%89%E7%AE%97%E5%BC%8F%E6%88%96%E8%BF%87%E7%A8%8B%EF%BC%89%E7%AD%94%E6%A1%88%E4%B9%9F%E4%B8%8D%E8%83%BD%E5%B0%91%211.%E6%89%80%E6%9C%89%E9%80%82%E5%90%88%E7%AE%97%E5%BC%8F7%2F18%EF%BC%9Cn%2F5%EF%BC%9C20%2F7%E7%9A%84%E8%87%AA%E7%84%B6%E6%95%B0n%E4%B9%8B%E5%92%8C%E4%B8%BA%EF%BC%88+%EF%BC%892.%E7%94%A81%2C5%2C5%2C5%2C%E5%87%9124%E7%82%B9%EF%BC%88%E5%8F%AF%E5%87%91%E5%88%86%E6%95%B0%EF%BC%89%2C%E7%AE%97%E5%BC%8F%E6%98%AF%EF%BC%88+%EF%BC%893.%E5%B7%B2%E7%9F%A5a%3D2011%2F2012+b%3D20122011%2F20122012%2C%E6%AF%94%E8%BE%83%E5%A4%A7%E5%B0%8F%2C)
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