[音频]1. Cheese was first made over 3,000 years ago.
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Cheese contains vitamins.
A. 对
B. 错
Most cheese in the United States is made from cow’s milk.
A. 对
B. 错
Cheese doesn't contain water.
A. 对
B. 错
The process of making cheese was probably discovered by chance.
A. 对
B. 错