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橢圓3--平行四邊形法
Author:
33陳郁婷
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
漂亮的摇摆曲线
兩位數加法
斜率的值
三位數除以一位數（一）
Discover Resources
Lagrange
史坦納圓 (Steiner Circle)
mario coin
正立方體內皂膜
GGB9
Discover Topics
Polygons
Correlation
Rational Numbers
Congruence
Dilation