中国大学MOOC: Hamburgers and hot dogs are foods that are commonly identified as American.
举一反三
- Consider the market for hot dogs. As long as the marginal benefit of consuming hot dogs is greater than the price of hot dogs, A: people receive consumer surplus from eating hot dogs. B: the price of hot dogs will rise. C: the value of hot dogs will rise. D: there is no decreasing marginal benefit of eating hot dogs.
- R2：Fish and chips, hamburgers, and Chinese foods are the most common take-away foods in Britain.
- 中国大学MOOC: She is an American.
- Chinese who live in the humid regions prefer（ ）. A: hot foods B: preserved foods C: sweet foods D: salty foods
- 中国大学MOOC: The earliest identified people lived in America is ____________.