填空题
Where did rice originate?
填空题
What kind of grain did most Europeans eat 500 years ago?
填空题
What kind of grain could be found in American diet 500 years ago?
填空题
Who used dairy product first in history?
填空题
In which year did Columbus take chili pepper to Spain?
填空题
How long did it take for chili pepper to become popular around the world?
填空题
Where can't chili pepper grow according to the talk?
填空题
What did Europeans think of potatoes?
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What was potato used for in Europe at first?
填空题
In what part of the world is potato especially a favorite food?