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第7题
Author:
zhuguokang
GeoGebra
New Resources
兩位數除以一位數（一）
柱體建築師
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
Discover Resources
立體圖形的反射對稱
trigo ratios np2c
DSE Mathematics
gjc090c23 圓內三角形與角度
俄罗斯方块（第二版）
Discover Topics
Vectors 2D (Two-Dimensional)
Cylinder
Surface
Planes
Trigonometric Functions