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中国节灯笼
Author:
孟宝兴
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
第八周作业
兩位數除以一位數（二）
拼砌四邊形
Discover Resources
複合圖形(一)
小精靈
Gazing Cow Problem (c)
分解角柱
时钟 的副本
Discover Topics
Arithmetic
Hyperbola
Normal Distribution
Differential Calculus
Integers