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二次函数与三角函数
Author:
数豆豆
GeoGebra
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兩組對邊相等和有直角的四邊形
第八周作业
球體建築師
GeoGebra笔记功能体验课件
畫出對稱圖形
Discover Resources
三角形内角和演示
gjc100a34 兩三角形重疊面積比
文創花燈
母子性質-1（動畫）
任務4的副本
Discover Topics
Trapezoid
Linear Equations
Variance
Triangles
Linear Programming or Linear Optimization