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1.What was the Internet first invented for?

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根据上文完成下列各题

It was invented for American Army.

2.When did the Internet and the World Wide Web begin to be widely used?

In the 1990s.

3.What does the Internet allow us to do?

It allows us to communicate with other people.

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4.What is the main idea of the last paragraph?

It tells us that the use of the Internet spread very quickly.

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