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有很多数学问题,初看起来似乎难以解决,可一旦思路开通,立刻茅塞顿开、豁然开朗。欣赏这些问题的解决方法,同样也是一种美的享受。
There are a lot of math problems, which at first glance may seem hard to solve. Appreciation of these problems, the solution is also a kind of beauty to enjoy.