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二次函数y=ax²（a＞0)
Author:
吕胜
GeoGebra
New Resources
画直线等分三角形的面积
兩位數加法
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
四邊形的特性
Discover Resources
謝丞宇
菱形
All in one (centres of triangle)
再作万年历单晨
小四_分數
Discover Topics
Bar Chart or Bar Graph
Geometric Transformations
Complex Numbers
Trapezoid
Frequency Distribution