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外凸的正方形
Author:
许业成
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
柱體建築師
算柱 (兩位數)
球體建築師
拼砌四邊形
Discover Resources
Probability(概率）
面積
科學記號
線性規劃
热带风暴storm
Discover Topics
Kite
Frequency Distribution
Mode
Plane Figures or Shapes
Means