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        [1]http://en.Wikepedia.com.[2]http://people.hofstra.edu/faculty/jean-paul_rodrigue.[3]RobertW.Americaneconomicreview:catchingupwiththeeconomy[J].NationalJournal,1999(2):78-83.[4]http://www.bp.com/statisticalreview.[5]SchipperL.Chinamotorizationtrends:poli    （本文共 1558 字 ）    [阅读本文] >>