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Author:
Lin Ching Chieh
GeoGebra
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兩組對邊相等和有直角的四邊形
球體建築師
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
兩位數加法
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數量與整體的相差百分率
glt-h02-00-正方形折成三角錐
重心三等分三角形
(001)80102史巧薇
微信公众号“sx880A8”第706期中非国旗（Central African Republic）
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Reflection
Division
Parametric Curves
Hypothesis Testing
Logarithm