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从科学方法论的高度看问题，代数求值问题要解决的就是已知与未知之间的矛盾．解决这一矛盾的思想方法就是转化．俄罗斯著名的现代数学教育家娅诺夫斯基卡娅在一次对数学奥林匹克参赛者的题为《解题意味着什么？》的演讲中说：“解题——就是意味着把所要解决的问题转化为已经
From the perspective of the height of scientific methodology, the problem of algebraic value evaluation is to solve the contradiction between known and unknown. The way to resolve this contradiction is to transform it. Russia’s famous modern mathematician Yanovskáka’s title for the Math Olympiad contestants is “What Does Solving Mean? ” in his speech: “Solving problems — it means turning the problems to be solved into