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waaachen
Author:
陳兪宏
waaachen
GeoGebra
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球體建築師
三位數除以一位數(二)
錐體建築師
算柱 (兩位數)
四邉形 (四年級) 教師版
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Linear Inequalities in Two Unknowns 二元一次不等式
天干與地支
椭圆中的对称斜率为定值问题20190917
翰林數學_2下_CH3-4_三角形的外角大於任一內對角
旋转的花瓣
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Coordinates
Step Functions
Fractal Geometry
Linear Regression
Unit Circle