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特製的門
Author:
李春培
特製的門
https://www.facebook.com/video.php?v=730160733696759&fref=nf
GeoGebra
New Resources
算柱 (兩位數)
兩位數除以一位數（二）
画直线等分三角形的面积
四邊形的特性
兩組對邊相等的四邊形
Discover Resources
工作天時
約分
分數乘法方塊
Dodecahedron
畢氏定理(遮蔽法)
Discover Topics
LCM and GCD
Confidence Interval
Vectors 3D (Three-Dimensional)
Mode
Prism