摘 要: | Computers are useful machines. They can help people a lot in their daily life. Forexample, they can help people to save much time to do much work, and they can helppeople to work out many problems they can’t do easily. Our country asks everyone tolearn to use computers before the twenty-first century, except the old people.Today more and more families own computers. Parents buy computers for theirchildren. They hope computers can help them improve their studies in school. Yet, manyof their …
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