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Doorsnede
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lin94127
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M10631310gg1
《平行相似的應用-下》(0226)
中考 2019 河南-23
毕氏螺线
dandelin
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三角函數的精確值
Quiz on Transformations in Cartesian Plane 直角坐標變換：測驗
作業未命名
方格纸上画平行线和垂线
摺正三角形
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Geometric Transformations
Reflection
General Quadrilateral
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Histogram
