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正4正8黏合
Author:
Wu Xiao-Ren
GeoGebra
New Resources
拼砌四邊形
球體建築師
畫出對稱圖形
四邊形的特性
三位數除以一位數（一）
Discover Resources
拋物線
立體圖形的反射對稱
Quiz on Reflection 反射變換：測驗
數播線上201802
雙曲線3--等軸法
Discover Topics
Statistics
Geometric Distribution
Integers
Addition
Right Triangles