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条件代数式的求值,在中考和数学竞赛中常有出现,这类问题题型多样,技巧性强,若能依据题目特点,灵活多变地采用不同的方法,可使问题简捷明快地获得解决.
Conditional algebraic expressions are often found in the Chinese exams and math competitions. These types of questions have various types of questions and are skillful. If different topics can be used according to the characteristics of the topic, different methods can be used flexibly to make the problem simple and clear.