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雨刷練習
Author:
連琨銘
GeoGebra
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三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
找出對稱軸
畫出對稱圖形
GeoGebra笔记功能体验课件
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形心
相似形的題目
集合
Indices 4
运动的全等三角形.许兴华数学
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Perimeter
Polygons
Median Value
Probability
Cone