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    2. The ORBIS doctor is training the local doctor how   (deal) with blindness.

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        Look around and you’ll see people busy on their smartphones. Smartphones do make our lives easier. But have you ever thought about what they mean to your eyes?

        According to a study,half of British people own smartphones and they spend anaverage (平均) of two hours a day using them There has been a 35% increasing number of people in the UK who suffer from shortsightedness (近视) since smartphones were introduced there in 1997.

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       B. the harm that smartphones do to users' eyes

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    Ⅱ.单项选择

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