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根據百分率找數量（一）:例1的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
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錐體建築師
柱體建築師
拼砌四邊形
【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
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橢圓
Question 4
拋物線3--平行四邊形法
和两个圆都相切的圆
运动的二面角.许兴华数学
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Line Segment
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