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Author:
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GeoGebra
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【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
球體建築師
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
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Test
Ex.2
gjc090c23 圓內三角形與角度
指数函数的副本
【物理】引力波
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Tangent Function
Dilation
Cosine
Trapezoid
Subtraction