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在直角坐标系中,某些特殊点的坐标问题是初中数学的重要内容,亦是中考命题的热点之一.现结合1999年各地中考试题,进行分类,并探讨其各自的解法.
In the Cartesian coordinate system, the coordinate problem of some special points is an important content of junior high school mathematics, and it is also one of the hot topics of the examination proposition. Now we combine the various local examination questions in 1999 to classify and discuss their respective solutions.