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仿真时钟2.0
Author:
陈力
Topic:
Constructions
GeoGebra
New Resources
第八周作业
判斷球體
畫出對稱圖形
兩位數除以一位數（二）
找出對稱軸
Discover Resources
內擺線
幾何作圖動畫示範
邊長與三角形（一）
謝爾賓斯基三角形(Sierpinsky)
gjc100a34 兩三角形重疊面積比
Discover Topics
Straight Lines
Expected Value
Equilateral Triangles
Logic
Parabola