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教学素材：椭圆与双曲线
Author:
清风拂琴，陌上花开
GeoGebra
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中华人民共和国国旗
科赫雪花
第八周作业1
平行線的判定
折扣
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圓周角的度數
只跳躍一次的函數
PMC 2014-15 Q4
圓底三角形截面
三角形3,4,5
Discover Topics
Integral Calculus
Addition
Pythagoras or Pythagorean Theorem
Dilation
Limits