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夏新桥老师的这篇文章对刊文的补注很好,说明解题时若片面追求技巧,很可能丢失一些最基础的东西．本文所用的基本解法确比刊文简单．
Xia Xinqiao’s article in this article is very good for the article’s remarks, indicating that if one-sided pursuit of skills when solving problems, it is likely to lose some of the most basic things. The basic solution used in this paper is indeed simpler than the article.