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1989全国文18
Author:
常振虎
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
四邊形的特性
拼砌四邊形
兩位數加法
Discover Resources
一元一次不等式圖形
橢圓
中垂線
y=2^x
Ex (SAS)
Discover Topics
Confidence Interval
Prism
Vectors 2D (Two-Dimensional)
Quadratic Equations
Pie Chart or Circle Chart