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五角星形
Author:
陳禹妗
GeoGebra
New Resources
中华人民共和国国旗
平行線的判定
活动三：应用性质
科氏力 (Coriolis Force)
百分數及其應用
Discover Resources
conjugate
轨迹2016.4.16
切割正二十面體(直)
蜘蛛網
高中数学-复数-自测、自练实验
Discover Topics
Distributions
Surface
Arithmetic Mean
Optimization Problems
Probability