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20191005高二孝李昭明
Author:
lee chao ming
GeoGebra
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第八周作业
近似值：有效數字
畫出對稱圖形
直角坐標平面上的旋轉變換
拼砌四邊形
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winter vacation homework 12
優良作品1(沛綺)
练习及小结
折線
高考椭圆题的动态演示1.许兴华数学
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Right Triangles
Matrices
Rotation
Triangles
Trapezoid