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日照与杆影变化
Author:
李晓龙
GeoGebra
New Resources
撒针估算面积实验
比較五件物件的重量
活动三：应用性质
折扣
异形操场
Discover Resources
task8
ie 1
等腰三角形外接圓上弦AB
test
拋物線6-包絡線法
Discover Topics
Optimization Problems
Equations
Sine
Reflection
Linear Programming or Linear Optimization