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拋物面的光學性質
Author:
宋政蒲
GeoGebra
New Resources
兩位數除以一位數（一）
算柱 (兩位數)
第八周作业
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
Discover Resources
Angry Bird
Dynamic HSV Color Platte
动圆在定圆上滚动
雙曲線1--焦點法
Slope of a tangent 切線斜率
Discover Topics
Exponent
Normal Distribution
Ellipse
Correlation
Random Experiments