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優良作品1(沛綺)
Author:
Ching-Hui Chou
GeoGebra
New Resources
四邉形 (四年級) 教師版
判斷球體
球體建築師
画直线等分三角形的面积
三位數除以一位數（一）
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二元一次方程式2
托勒密定理推廣到任意四邊形二
正方體的旋轉對稱
必修二P156二面角与平面的法向量
旋轉扇形
Discover Topics
Vectors 2D (Two-Dimensional)
Sine
Vectors 3D (Three-Dimensional)
Derivative
LCM and GCD