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黎曼和
Author:
李宛臻
20160416
GeoGebra
in CYCU
New Resources
畫出對稱圖形
四邊形的特性
兩組對邊相等的四邊形
三位數除以一位數（一）
錐體建築師
Discover Resources
Constructing Quadrilaterals by Four Sides (2014)
立方和
線型函數
百度
正方形
Discover Topics
Binomial Distribution
Difference and Slope
Surface
Cuboid
Median Line