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國旗
Author:
Cathyyu920311
GeoGebra
New Resources
異分母分數減法
兩組對邊相等的四邊形
兩位數除以一位數（二）
四邊形的特性
拼砌四邊形
Discover Resources
數量與整體的相差百分率
會逗留的折線
太陽系的認識(問答)
比較角的大小三
laptop height
Discover Topics
Volume
Vectors 3D (Three-Dimensional)
Linear Functions
Functions
Sequences and Series