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勾股树
Author:
王玉霞
GeoGebra
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中华人民共和国国旗
活动三:应用性质
第八周作业2
撒针估算面积实验
折扣
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不規則填色
六面長方體
Rolling Circle
操場
橢圓幾何性質,光學性質,生活應用
Discover Topics
LCM and GCD
Geometry
Piecewise Functions
Translation
Perimeter