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From the late 1970s China's reform and opening-up policy, China and the United States the economic and trade relations have made considerable progress. Whether the amount of trade, or the coverage of the commodity structure has a tremendous growth and expansion. 2003, the United States has become China's second largest trading partner after Japan. China, as the world's largest developing country and the United States as the world's largest developed country, have strong economic complementarity, there is a wide range of mutually beneficial economic and trade interests in the new century, China's export trade development, A new level, and truly become a foreign trade of China's economic growth of the "engine." But along with the increase of trade volume, "Made in China" into every corner of American life, various well-known U.S. brands are also constantly enter the Chinese mainland cities and even rural market. Therefore, in such a busy tra