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ROC國徽1060310
Author:
陳正鴻
GeoGebra
New Resources
三位數除以一位數（一）
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
柱體建築師
直角坐標平面上的旋轉變換
Discover Resources
過圓內一點最短弦
小二三 畫時鐘
Homework4
弗雷澤螺旋幻覺圖(難度99%)
动态平衡
Discover Topics
Symmetry
Combinatorics
Polynomial Functions
Quadratic Equations
Square