【经济学家111031】石油业:石油巨头的“巨头”兄弟
The oil business
Big Oil’s bigger brothers
高油价对石油公司来说非常重要,但它同时也吸引了竞争对手。
A high oil price is great for oil companies, but it also attracts competitors
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原文链接:http://www.economist.com/node/21534794