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Their behaviors can be an invisible threat to society.
出自-2016年12月阅读原文
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But the invisible group wasn't far behind the high-risk set, with more than 13% of them exhibiting depression.
出自-2016年12月阅读原文
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Because their behaviors are not usually seen as a red flag, these young people have been dubbed the invisible risk group by the study's authors.
出自-2016年12月阅读原文
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And 29%, the invisible risk group, scored high on three in particular: They spent five hours a day or more on electronic devices.
出自-2016年12月阅读原文
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As the Indian economist Amartya Sen has wisely said, "The invisible hand of the market has often relied heavily on the visible hand of government.
出自-2012年6月阅读原文
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And 29%, the "invisible risk"group, scored high on three in particular: They spent five hours a day or more on electronic devices.
2016年12月六级真题（第二套）阅读 Section C