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圓錐截痕
Author:
洪宜慧
GeoGebra
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四邊形的特性
【案例】2013年安徽高考15题
找出對稱軸
兩位數除以一位數（一）
判斷球體
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PMC 2014-15 Q4
Name the prism 3
Apollonius Problem 10 CCC wiki step 5
双曲线的定义.许兴华数学
序列向量
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Mode
Frequency Distribution
Area
Numbers
Intersection