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立體
Author:
tan90
GeoGebra
New Resources
三位數除以一位數（二）
直角坐標平面上的旋轉變換
四邊形的特性
異分母分數減法
找出對稱軸
Discover Resources
坐標測驗
Pyramid with a Vertical Pole
橢圓軌跡03
棒形圖編輯(修改版)
Addition and Subtraction of Directed Numbers (1)