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GeoGebra
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GeoGebra
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未命名
Author:
Zhang Guangmin
GeoGebra
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异形操场
第八周作业2
第八周作业3
中华人民共和国国旗
盈利與虧蝕
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座標工具檔
二次函數的圖形
兩面角
圓錐截痕
作三角形
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Square
Trapezoid
Orthocenter
Trigonometry
Special Points