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Aj1
Author:
俊吉
GeoGebra
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椭圆内切圆链
龙形曲线-分形龙
异形操场
第八周作业1
第八周作业2
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我的第一個GGB動畫
test22
橢圓內的光線反射 獻給聰哥
单位圆与正弦函数
两个等腰三角形
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Rectangle
Median Line
Differential Equation
Parabola
Percentages