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2016一模-24题-长宁
Author:
王阳
GeoGebra
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异形操场
双心四边形
常见四边形是否是双心四边形
比較五件物件的重量
龙形曲线-分形龙2
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九點共圓
glt-c02-08 三角柱旋轉
西姆松定理推廣(西姆松圓)
平行線的斜率_hui sir
動畫
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Calculus
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