问题描述：
One of the favorite foods in the United States is the hamburger,a kind of flat found bread with ...
One of the favorite foods in the United States is the hamburger,a kind of flat found bread with fine-cut beef in between
people order their food and carry it to their tables themelves.people can order their food,pay for it and pick it up without leaving their cars.
One of the favorite foods in the United States is the hamburger,a kind of flat found bread with fine-cut beef in between
people order their food and carry it to their tables themelves.people can order their food,pay for it and pick it up without leaving their cars.
问题解答：
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