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勝者即正義
Author:
魏子翔
GeoGebra
New Resources
三位數除以一位數（二）
畫出對稱圖形
兩位數加法
【案例】圆柱体内放置一个大球六个小球
四邉形 (四年級) 教師版
Discover Resources
达布和
Q5-7
旋转体
十分逼近法
滑桿動畫示範-3(畢氏定理)
Discover Topics
Straight Lines
Quadrilaterals
Curve Sketching
Constructions
Rotation