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边长可变的正三角形上莱洛转子的滚动
Author:
朱亮
Topic:
Equilateral Triangles
,
Rotation
,
Sequences and Series
GeoGebra
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【案例】2013年安徽高考15题
三位數除以一位數(二)
柱體建築師
判斷球體
兩組對邊相等的四邊形
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上下
教案一
作業1:內心
正十二面體內接正四面體旋轉
达芬奇椭圆仪
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Calculus
Exponent
Vectors 2D (Two-Dimensional)
Random Experiments
Definite Integral