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劉德晧proof14
Author:
郭亮偉
GeoGebra
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兩位數除以一位數（二）
【案例】2013年安徽高考15题
判斷球體
球體建築師
【案例】2018年全国1卷理科12题
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題二
廻轉式壓縮機運轉圖
分數認識
test1
正方体、正四面体的外接球
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Ratios
Similar Triangles
Complex Numbers
Normal Distribution
Variance