【毎日一問】工程基礎知識（判断問題：正しいらば「√」、間違っていれば「×」を記入）2020.5.10
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石油中のナフサ酸は、主にディーゼル油および潤滑油留分に含まれている。対
ナフサ酸は主に灯油およびディーゼル留分に含まれており、軽質留分および重質留分では含有量は非常に少ない。
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