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16-2-2-光电效应遏止电压与照射光的频率的关系-尤景汉
Author:
王翚
GeoGebra
New Resources
球體建築師
拼砌四邊形
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
Discover Resources
Question 1(Angle)
猴子爬樹
國旗1
a sin(bx+c) + d 的圖形的副本
动圆与两圆外切与内切(2)
Discover Topics
Parallelogram
Symmetry
Difference and Slope
Isosceles Triangles
Natural Numbers