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Author:
陈铁成
GeoGebra
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兩位數除以一位數（二）
拼砌四邊形
算柱 (兩位數)
三位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
三角形與邊上一點求正三角形
愛上貝氏曲線 (Love for Bezier)
Where is Micky?
分1
测试
Discover Topics
Interest Calculation
Volume
Surface
Sequences and Series
Integers