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katrinaleungkl
GeoGebra
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平行線的判定
第八周作业1
斐波那契螺旋弧线(表格法)
百分數及其應用
双心四边形
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笛卡兒心臟線
一元二次方程求根公式
兩位小數GAME
尋找極小值
泰北2017GGB研習
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Similar Triangles
Mathematics
Cone
Circle
Optimization Problems