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未命名
Author:
Zhang Guangmin
GeoGebra
New Resources
兩位數加法
柱體建築師
拼砌四邊形
三位數除以一位數（二）
球体的体积推导（优化版）
Discover Resources
Proof77 - 楊筑雯
二次函數及其圖像2
時鐘與數學
拉面直径例题
橢圓1-同心圓法
Discover Topics
Geometric Transformations
Hypothesis Testing
Complex Numbers
Angles
Cuboid