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21第25题
Author:
袁正铎
GeoGebra
New Resources
第八周作业
Earth with coastline
小数 的副本
長方體平面投影 (Codex版)
直角坐標平面上的旋轉變換
Discover Resources
牟合方蓋：兩圓柱交集
Copy of 尋找等腰三角形 Isosceles Triangle Hunt
椭圆的定义
GGB 教程
圓錐的曲面面積的副本
Discover Topics
Linear Programming or Linear Optimization
Congruence
Means
LCM and GCD
Square