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圆锥曲线的第二定义
Author:
孟宝兴
GeoGebra
New Resources
科氏力 (Coriolis Force)
撒针估算面积实验
双心四边形
第八周作业3
常见四边形是否是双心四边形
Discover Resources
圓圓求切圓
圓錐曲線---雙曲線
笛卡兒心臟線
拋物線3--平行四邊形法
Copy of 正方體的反射對稱2
Discover Topics
Random Experiments
Standard Deviation
General Quadrilateral
Congruence
Special Points