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关注：1
2013-05-23 12:21
求翻译：While the potential for selection bias persists in within-student estimates, the most reasonable mechanism – that family computer purchases coincide with general improvements in well-being– implies that our estimates understate the negative impact of home computer access.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
While the potential for selection bias persists in within-student estimates, the most reasonable mechanism – that family computer purchases coincide with general improvements in well-being– implies that our estimates understate the negative impact of home computer access.
问题补充： |
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