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2048小游戏
Author:
孟宝兴
GeoGebra
New Resources
找出對稱軸
画直线等分三角形的面积
算柱 (兩位數)
兩位數除以一位數(二)
四邉形 (四年級) 教師版
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可积准则
正方形截痕
圓與直線距離
球面坐標
两个等腰三角形
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Conic Sections
Mathematics
Linear Regression
Matrices
Tree Diagrams