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直线的斜截式方程
Author:
卜扬帆
GeoGebra
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科赫雪花
斐波那契螺旋弧线（表格法-可动态调节）
比較五件物件的重量
科氏力 (Coriolis Force)
常见四边形是否是双心四边形
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掃描不等式圖
Christmas Tree
尺規作圖2
硬幣換算小遊戲
〃One〃
Discover Topics
Percentages
LCM and GCD
Geometry
Means
Integral Calculus