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圓例4
Author:
陳柄何
GeoGebra
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兩位數除以一位數(二)
兩位數除以一位數(一)
兩組對邊相等和有直角的四邊形
兩位數加法
異分母分數減法
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test
圖形繪製---心型線
Angle at Centre and Angle at circumference
椭圆的一种简单画法.许兴华数学
空间中两直线的位置关系
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Square
Vectors 2D (Two-Dimensional)
Cube
Tangent Function
Equilateral Triangles