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刚体力学-重心-孟琴双-王翚
Author:
王翚
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
兩位數加法
三位數除以一位數（一）
Discover Resources
三角形全等的理由 – 題2
正方形和長方形有甚麼特性？的副本
兩位小數
時鐘
Clown
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Triangles
Stochastic Process or Random Process
Standard Deviation
Exponent
Circle