代數問題(金銀在水裡重量比在空氣的重量):－線上遊戲排行榜2013/2014,進擊的巨人線上看,candy crush saga外掛,正妹寫真三圍

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Oct 1st 2013, 04:29

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金銀在水裡重量比在空氣的重量, 分別減輕 1/19 與 2/12 , 今有金銀合金一塊, 重一公斤, 其水中的重量比空氣中的重量, 要輕 80克, 問此合金中, 金與銀的重量各多少?...

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xxxmkks

線上遊戲排行榜2013/2014,進擊的巨人線上看,candy crush saga外掛,正妹寫真三圍

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線上遊戲排行榜2013/2014,進擊的巨人線上看,candy crush saga外掛,正妹寫真三圍