以下《2014考研作文话题预测及范文（四）》由出国留学网考研英语作文频道为您独家提供，欢迎大家参考。 ilRefining An important new industry, oil refining, grew after the Civil War.Crude oil, or petroleum -- a dark, thick ooze from the earth -- had beenknown for hundreds of years, but little use had ev...