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标题: [视听材料] 大学英语四级(选词填空)专项训练 [打印本页]

作者: shimianmaifu    时间: 2014-3-31 14:13     标题: 大学英语四级(选词填空)专项训练

大学英语四级(选词填空)专项训练
  The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday.
  While elderly people __47__ to sleep for fewer hours than they did when they were younger, this has a(n) __48__ effect on their brain's performance and they would benefit from getting more, according to research.
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