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三角形三边关系
Author:
叶明杰
GeoGebra
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比較五件物件的重量
盈利與虧蝕
第八周作业1
科赫雪花
平行線的判定
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永遠固定大小的圖片
動態角=30
Twist Bottle
三角形的面積的副本
微信公众号“sx880A8”第253期印度尼西亚国旗(Indonesia flag)
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Cube
Division
Statistical Characteristics
Probability
Incircle or Inscribed Circle