继利比亚紧张局势升级之后，绝大多数主要等级的石油价格日前均大幅上扬，尽管近来价格有所反弹，但仍在波动之中。
Prices of most major grades of oil spiked last week after tensions heightened in Libya and, although they've retreated a bit, they remain volatile.
英国财政大臣阿利斯·太尔·达林已经将个税的最高税率等级提高到50%，而且还对石油，酒精和香烟增税。
The chancellor, Alistair Darling, raised the top income-tax rate to 50% and also increased duties on fuel, alcohol and tobacco.
超越美国石油协会API质量等级标准。
API American petroleum Institute goes beyond the quality and grade standards.
超越美国石油协会API质量等级标准。
API American petroleum Institute goes beyond the quality and grade standards.
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