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相反数 思考（教材第10页）
Author:
陈力
Topic:
Algebra
GeoGebra
New Resources
畫出對稱圖形
柱體建築師
算柱 (兩位數)
【案例】2018年全国1卷理科12题
直角坐標平面上的旋轉變換
Discover Resources
形心
圓與正三角形上動點連線上中點的軌跡
上色練習
Ex5D#1
不等式組
Discover Topics
Arithmetic Mean
Frequency Distribution
Rhombus
Functions
Scatter Plot