很好的数学书没有答案,比如卓里奇,一道题目可能看不懂或看懂了完全无从下手,这时候做了有什么意义吗? 知乎 Template




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tomski很好的数学书没有答案,比如卓里奇,一道题目可能看不懂或看懂了完全无从下手,这时候做了有什么意义吗? 知乎 coloring