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星八面體
Author:
pingfeng.wu
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y=a(x-h)²+k的副本
同分母減法50
中考2018沈阳
中國火柴遊戲二的副本
認識直徑
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暗棋的步距
百葉窗2
軌跡觀察---模擬摺紙
Tangent from an external point
I love Taiwan.(可縮放和移動)
Discover Topics
Confidence Interval
Linear Functions
Probability
Sphere
Perimeter
