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折射的現象
Author:
Jia-ming Shiu
拉動G，看出虛擬呈現
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
拼砌四邊形
算柱 (兩位數)
Discover Resources
ppppp
同底指對數函數
練習
三角形三內角和
三角函数变换
Discover Topics
Random Variables
Tangent Function
Geometric Distribution
Square
Isosceles Triangles