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密鋪5
Author:
chen mingchuan
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
異分母分數減法
四邊形的特性
柱體建築師
三位數除以一位數（一）
Discover Resources
四邊形四個九點圓共點(九點心)
織布機織布機
tool1
V3-2-2
venn图着色
Discover Topics
Linear Regression
Rotation
Dilation
Bar Chart or Bar Graph
Cosine