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Author:
陈铁成
GeoGebra
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中华人民共和国国旗
第八周作业3
撒针估算面积实验
折扣
圓的基本性質
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電子幾何條
高美濕地風車2
Right-endpoint Riemann Sum
正多边形内接迭代
立體圓錐與斜切面關係
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Logic
Polygons
Combinatorics
Circle
Tangent Function