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3相電源相序檢測
Author:
歐鎮寬
GeoGebra
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兩位數加法
三位數除以一位數(二)
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
找出對稱軸
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用極座標做時鐘
以面積固定平行線軌跡
歷屆考題
兩面角
雙曲面Hyperboloid
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Square
Mode
Percentages
Hypothesis Testing
Root