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traveling wave01
Author:
ken@ylshsap
GeoGebra
New Resources
盈利與虧蝕
圓的基本性質
第八周作业2
活动三：应用性质
第三周作业效果演示
Discover Resources
樣本大小與抽樣誤差
平面方程式與法向量
旋转体的定义
gjh-g02-00 單項乘以兩項差
微信公众号“sx880A8”第706期中非国旗（Central African Republic）
Discover Topics
Rotation
Square
Percentages
Angles
Pythagoras or Pythagorean Theorem