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版本5
Author:
zbzhen
GeoGebra
New Resources
祖冲之的期望：内棋与外棋
讀磅
圓周公式的應用
常见四边形是否是双心四边形
漂亮的摇摆曲线
Discover Resources
直線與曲線
Quadratic Inequalites(ax^2+bx+c)
內輪差...
reflectional symmetry_3
常见立体图形的截面
Discover Topics
Volume
Subtraction
Optimization Problems
Statistics
Pyramid