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F4_Ch9.1
Author:
Franky_0219
Topic:
Trigonometric Functions
更新版
https://www.geogebra.org/m/h8vdgvbv
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第八周作业
柱體建築師
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
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