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A的影响
Author:
军云
GeoGebra
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畫出對稱圖形
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
柱體建築師
錐體建築師
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Math_Class Activity 1
軌跡二︰移動點與兩固定點保持相等距離(垂直平分線)
中研院數學所
Copy of 仙后座找北極星1
畢氏定理