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人类数学史上曾出现三次危机，最后一个危机至今仍然没解决！当人们研究等腰直角三角形，并发现斜边长为根号2时，他们试图探求根号2的确切性质，从此开启了对“根号2”的无尽探寻。 根号2的出现，宣告了 ...
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