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k126各國基地
Author:
華柏維
GeoGebra
New Resources
異分母分數減法
球體建築師
四邊形的特性
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
Discover Resources
解方程式
過點切圓的動圓圓心軌跡
ghk106a07 圓半徑與外切、外離關係
单位圆画三角函数图像的副本
完全图及其变形
Discover Topics
Linear Programming or Linear Optimization
Geometric Transformations
Matrices
General Quadrilateral
Normal Distribution