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Two lines

Author:Ng KC

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三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
柱體建築師
球體建築師

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兩圓內外公切線
雙曲線
二面角
max2
卓蘭高中

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Line Segment
Planes
Arithmetic Operations
Mode
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