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向量的隐圆2-直径圆
Author:
吕胜
GeoGebra
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折扣
比較五件物件的重量
正方形雪花图案
撒针估算面积实验
第八周作业3
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正弦函數值的變化
Copy of 峯01
各種四邊形
畢式定理 (12)的副本
模拟龟兔画板
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Constructions
Reflection
Similar Triangles
Cosine
Planes