[简答题]

As you know, many big changes happened after Christopher Columbus and other Europeans came to the Americas 500 years ago. Today I’m going to talk about a change in the world diet--the way people cooked and ate. Five hundred years ago, there was a big change in the diet of people all over the world.
Let’s talk about the diet in Europe 500 years ago. One important food was meat. Europeans ate many kinds of meat, including beef, lamb, goat, and pork. Europeans also ate dairy products--milk and cheese --made from the milk of cows and goats. The Europeans ate several different grains: Most people ate wheat, and some people ate rice, which came first from Asia.
Now, let’s look at the diet in the Americas about 500 years ago. The diet of the native American was quite different from the diet of the Europeans. This is because the European means, dairy products, and grains didn’t exist in the Americas. However, the native Americans ate some food that

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