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Author:
侯杰材
GeoGebra
New Resources
找出對稱軸
錐體建築師
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
兩位數除以一位數（一）
Discover Resources
猜猜平均數（限時版）
高斯函數
涌动
Locus (Two points 1)
再作万年历单晨
Discover Topics
Exponent
Rational Numbers
Expected Value
Reflection
Area