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A PC can be a laptop or a desktop.

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A CPU, usually regarded as the heart of a computer, can be a microprocessor.

We can learn from the text that a computer can ______.

A. be best used as a calculating device
B. be best used in word processing
C. find uses almost everywhere
D. have intelligence of its own

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One of the drawbacks of a computer is that it cannot he used as a recreational device.

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The main purpose of the fifth generation computer effort is ______.

A. to use molecules instead of electronic elements
B. to express logical symbols in the way of chemical units of DNA
C. to obtain true artificial intelligence
D. to take the place of human thoughts

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