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兩圓的公切線
Author:
鍾元杰
兩圓的公切線
GeoGebra
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【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
畫出對稱圖形
異分母分數減法
三位數除以一位數（二）
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幾何分布 (Geometric Distribution)
Is this a prism 11
ie 1
滾出直線之2的副本
中国纸质灯笼
Discover Topics
Vectors 2D (Two-Dimensional)
Constructions
Rotation
Expected Value
Kite