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在解答一些与分式有关的求值或比较大小的问题时,若能巧妙地运用倒数的两条性质,则可达到化难为易、运算简便的效果.
In answering some of the fractal-related evaluation or the size of the problem, if you can skillfully use the reciprocal of the two properties, you can achieve the difficult as easy, simple operation effect.