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堆朵
Author:
hou yi ting
想堆幾層就堆幾層
GeoGebra
小心不要倒下來
New Resources
拼砌四邊形
找出對稱軸
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
Discover Resources
直線之美
六下_圓周(教師版)
自我練習
测试
橢圓規Ellipsograph (Trammel of Archimedes)
Discover Topics
Quadratic Equations
Arithmetic Mean
Polynomial Functions
Dilation
Vectors