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正三角形的旋轉
Author:
李春培
正三角形的旋轉
GeoGebra
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四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
球體建築師
柱體建築師
判斷球體
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Direct Variation
拿破侖定理(外拿破侖)證明二
test04繪本用
doto属性研究
ｃｉｒｃｌｅ ｓｅｇｍｅｎｔ2
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Histogram
Random Experiments
Hyperbola
Cube
Isosceles Triangles