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外凸的正方形
Author:
宋晓燕
GeoGebra
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【案例】2018年全国1卷理科12题
拼砌四邊形
畫出對稱圖形
柱體建築師
兩位數除以一位數（二）
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題目
GGB DAY3
製作四個不同的梯形
Illusion-内凹的正方形
翰林數學_2下_CH3-4_樞紐定理
Discover Topics
Hypergeometric Distribution
Interest Calculation
Conditional Probability
Sine
Mode