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塗色01
Author:
李伶芳
GeoGebra
New Resources
異分母分數減法
算柱 (兩位數)
找出對稱軸
三位數除以一位數（一）
拼砌四邊形
Discover Resources
test P1
Tractrix surface
Quiz on Interest 利息：測驗
P6數學
动态曲线
Discover Topics
Variance
Square
Parallelogram
Frequency Distribution
Differential Equation