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"拈" 類遊戲之一-搶21遊戲 The 21 game
Author:
侯杰材
GeoGebra
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第八周作业
兩位數除以一位數（二）
GeoGebra笔记功能体验课件
画直线等分三角形的面积
錐體建築師
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恒在线上的一点
step
area 面積3
Copy of 畫三角形 題2c
达芬奇椭圆仪
Discover Topics
Arithmetic
Prism
Parametric Curves
Equilateral Triangles
Frequency Distribution