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足迹
Author:
孟宝兴
足迹
GeoGebra
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三位數除以一位數(一)
画直线等分三角形的面积
異分母分數減法
兩位數除以一位數(一)
球體建築師
Discover Resources
peacock2
柱體建築師
圖形的周界
拋物線四-平行四邊形法
七年级数学平行线间的橡皮筋问题
Discover Topics
Natural Numbers
Real Numbers
Power Functions
Quadratic Functions
Conic Sections