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平行2
Author:
Hui Sir
GeoGebra
New Resources
兩位數除以一位數（一）
三位數除以一位數（二）
四邉形 (四年級) 教師版
判斷球體
直角坐標平面上的旋轉變換
Discover Resources
判斷球體 1
優良作品1
Quiz on Special Lines in Triangles 三角形內的特殊線：測驗
扇形旋轉
手拉手模型
Discover Topics
Arithmetic Operations
Random Experiments
Trapezoid
General Quadrilateral
Probability