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沿著圓柱螺旋爬升
Forfatter
官長壽(longlife)
GeoGebra
阿壽工坊---
http://120.101.70.8/longlife/
Nye Materialer
兩位數加法
兩位數除以一位數（一）
拼砌四邊形
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
Opdag Ressourcer
zuiduan
動畫
永春高中研習
reflectional symmetry_5
From Bra chart to Broken line graph
Udforsk emner
Keglesnit
Geometri
Differentialligninger
Polynomielle funktioner
Logaritme