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The so-called imported oil dependence degree commonly refers to the proportion of oil imported to China’s oil consumption, which hit 56% in 2009 and has exceeded 50% in 2007. In the past two years, the
The so-called imported oil dependence degree commonly referred to the proportion of oil imported to China’s oil consumption, which hit 56% in 2009 and has exceeded 50% in 2007. In the past two years, the