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Author:
chenzenyi
GeoGebra
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盈利與虧蝕
椭圆内切圆链
中华人民共和国国旗
百分數及其應用
龙形曲线-分形龙2
Discover Resources
史坦納圓 (Steiner Circle)
第四冊 3-4 大角對大邊
Hyperbolic Spiral
特殊時鐘模擬
分苹果除法
Discover Topics
Difference and Slope
Statistical Characteristics
Geometric Transformations
Definite Integral
Mathematics