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单晨答图霸湖北李光荣
Author:
单晨
GeoGebra
New Resources
三位數除以一位數（一）
兩位數加法
直角坐標平面上的旋轉變換
找出對稱軸
四邉形 (四年級) 教師版
Discover Resources
傅立葉級數 (2)
Trapezium fixed height
排列組合
Sierpinski 分形
Drag me~
laptop height
Discover Topics
Addition
Trapezoid
Quadratic Equations
Parallelogram
Tree Diagrams