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geo123
Author:
hsu hung yang
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GeoGebra
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四邉形 (四年級) 教師版
異分母分數減法
【案例】2018年全国1卷理科12题
判斷球體
sanjiaohanshu
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Mobius 變換 (2)
Quiz on Rectangular Coordinates (2) 直角坐標測驗2
三角形的內角和+內心與外心
二次函数y=ax²（a＞0)
圓外切四邊形
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Numbers
Special Points
Area
Subtraction
Geometry