American fast food culture -Take McDonalds as an example （ 美国的饮食文化-以麦当劳为例）The United States is a land of immigrants mainly from Europe and Africa after the discovery of the new world, in dealing with the issue of reunification and constitutional politics, economy and science and technology had been rapidly developed. At that time, due to the U.S. economic recovery after world war ii, American industrial civilization and the pace of global expansion
