for many purposes, computers can be used to prepare payrolls, guide airplane flights, direct traffic, even to play che

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1. (2019高一上·上海期中) for many purposes, computers can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. (design)

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1. (2019高一上·上海期中) for many purposes, computers can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. (design)