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Author:
梁航宇
GeoGebra
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小数 的副本
算柱 (兩位數)
四邉形 (四年級) 教師版
判斷球體
找出對稱軸
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滚动的硬币
math123456
可調包絡圓
gjzbh 矩陣與遞迴關係（3階）
拖拉小正方体
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Trigonometry
Vectors 2D (Two-Dimensional)
Tree Diagrams
Rectangle
Rotation