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Author:
万超杰
GeoGebra
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活动三:应用性质
常见四边形是否是双心四边形
盈利與虧蝕
龙形曲线-分形龙2
第八周作业3
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sample mean T test
My second work
基礎作圖1
圓內接四邊形對角
游戏
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Circle
Addition
Coordinates
Multiplication
Equations