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優良作品5(沛綺)
Author:
Ching-Hui Chou
GeoGebra
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四邊形的特性
四邉形 (四年級) 教師版
兩位數加法
異分母分數減法
判斷球體
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ghseh 二次函數描點法上下平移-4
密鋪圖形
圆的面积展开的副本
比例中的定值問題(一)
橢圓軌跡
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Mathematics
Standard Deviation
Root
Constructions
Addition