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Twghmkc_時鐘
Author:
梁卓華
GeoGebra
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三位數除以一位數（二）
柱體建築師
画直线等分三角形的面积
四邉形 (四年級) 教師版
異分母分數減法
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Vertex Form of Quadratic Functions(2) 二次函數的圖像：頂點式(2)
sin(x)0-720
TRY_4.11.2016
三角柱
繡曲線設計
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Symmetry
Angles
Line Segment
Statistics
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