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最佳答案:用九百九十九文钱买甜果和苦果共一千个,甜果九个卖十一文钱,苦果七个买四文钱,问甜果和苦果各多少个?各花了多少钱?设甜的买了X,苦的是YX+Y=1000X/9*1
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最佳答案:I and you,Tonglu as strangers.I do not know about you,I am not familiar with you