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任务12：手拉手模型
Author:
陈丽婷
GeoGebra
New Resources
异形操场
科赫雪花
第八周作业
龙形曲线-分形龙2
斐波那契螺旋弧线（表格法）
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平行四邊形與菱形的分別
李冠逸 拋物面反射
GGB分解的按鈕設計
內心
內心
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Numbers
Division
Vectors 2D (Two-Dimensional)
Triangles
Curve Sketching