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拋物線
Author:
宋秉祐
New Resources
埕瑋_幾何證明_p12_類題演練
no.1
Test
错觉平行线
平面截圆锥
Discover Resources
長方形與正方形的面積
pic3-8-9
PMC 2014-15 ans
面積切割
大小相同串珠
Discover Topics
Parallelogram
Straight Lines
Cylinder
Distributions
Trigonometry
