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peacock
Author:
李春培
peacock
GeoGebra
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常见四边形是否是双心四边形
异形操场
比較五件物件的重量
第八周作业2
圓的切線方程
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zhengming
四邊形四個九點圓共點
quiz 9.1 2(a)
等截距和直線包絡拋物線
等腰三角形 － 等角對等邊的副本
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Median Value
Statistical Characteristics
Hypothesis Testing
Standard Deviation
Addition