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密鋪7
Author:
chen mingchuan
GeoGebra
New Resources
兩位數除以一位數（一）
【案例】2013年安徽高考15题
第八周作业
兩組對邊相等和有直角的四邊形
拼砌四邊形
Discover Resources
Parallelogram 02
Lens
正四面體與正八面體
數值滑桿_長方形1
麻之葉
Discover Topics
Natural Numbers
Polygons
Linear Functions
Equilateral Triangles
Rectangle