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According to the passage how often we need a digital break?

科目名称：理工英语1

试卷号：23894

题型：单选题

题目：According to the passage how often we need a digital break?

选项：A. A few hours every day, or at least once in a while. B. A few hours every week, or at least once every ten minutes. C. A few hours every day, or at least once every ten minutes.

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答案：A. A few hours every day, or at least once in a while.

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