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几何体
Author:
DongHai Zhang
预习相关知识
GeoGebra
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画直线等分三角形的面积
兩位數除以一位數（二）
祖冲之的期望：内棋与外棋
斜率的值
漂亮的摇摆曲线
Discover Resources
龍騰4_1-1講段8
劉徽的「割圓術」
Yeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
正弦曲线的生成
巧克力包裝盒的夾角(三角形柱)
Discover Topics
Integers
Quadrilaterals
Vectors
Limits
Hypothesis Testing