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電腦數學20點，可用直尺作答
Oct 27th 2013, 20:11

一條線是"~"這麼長

兩條線是"~~"這麼長

如果"~~"+"~~"必須-掉" "才是正確量度

試問：

「~~~~~~~~~~~ + ～～～～～～～～～～ - ~~~~～～～～ ＝？
以上線條拉直後是幾公分?」

※作答可用直尺、計算機

20點

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