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单晨正方形在正六边形内部滚动的课件
Author:
单晨
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
找出對稱軸
錐體建築師
第八周作业
Discover Resources
正三角形堆垛
圓與切線
拋物線5--包絡線法
频率与概率——投掷硬币的试验
小五_近似值
Discover Topics
Logarithmic Functions
Trigonometry
Boxplot
Angles
Linear Regression