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弹簧变化
Author:
zgc112
GeoGebra
New Resources
異分母分數減法
兩位數加法
三位數除以一位數（二）
直角坐標平面上的旋轉變換
算柱 (兩位數)
Discover Resources
拋物線的兩切線
Tangent from an external point
Copy of 指數函數與對數函數圖形圖形(同底)
點和圓的位置關係的副本
球面坐標
Discover Topics
Triangles
Curve Sketching
Real Numbers
Cube
Frequency Distribution