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视觉差-桌面
Author:
龚洪萍
GeoGebra
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平行線的判定
斐波那契螺旋弧线（表格法-可动态调节）
盈利與虧蝕
科赫雪花
折扣
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直線方程
Untitled1
Meaning of Negative Indices 負指數的意義
三角形
建中科學班檢定
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Conic Sections
Integral Calculus
Statistical Characteristics
Linear Equations
Quadrilaterals