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椭圆的一种简单画法.许兴华数学
Author:
许兴华数学
Topic:
Conic Sections
GeoGebra
New Resources
美國國旗 (Claude 版)
判斷球體
四邉形 (四年級) 教師版
第八周作业
找出對稱軸
Discover Resources
三角格紋
No.5
畢氏定理完成20170330
作業
省政信箱
Discover Topics
Trigonometric Functions
Secant Line or Secant
Functions
Square
Diagrams