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fcg1
Author:
符成岗
GeoGebra
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第八周作业2
球体的截面
异形操场
平行線的判定
第八周作业3
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曲線與投影
三角形探究1
分數認識
層層套疊的四邊形
斜坡上的線與交角
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Square
Differential Calculus
Parallelogram
Diagrams
Cosine