| As the world's largest fast food chain overhauls its menus, test yourself on how much you know about burgers, fries and the people who sell these to us. McDonalds' menus are changing amid growing alarm in the fast food industry about nutrition and sales. The company is junking its "super-sized" portions and pushing foods like salads or fruit. Many of us eat fast food more often than we care to admit, but how much do we know about it and the people who sell it to us?
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