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折線1
Author:
chen mingchuan
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
找出對稱軸
四邉形 (四年級) 教師版
Discover Resources
柱體建築師 3
sinα + sinβ > 0 ?
locus of a segment
畢式定理 (12)的副本
可拖动A、B 改变形状
Discover Topics
Integers
Square
Congruence
Scatter Plot
Inequalities