大学英语四级(选词填空)专项训练
[font=Simsun][size=13px] 大学英语四级(选词填空)专项训练[/size][/font][font=Simsun][size=13px] The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday.[/size][/font]
[font=Simsun][size=13px] 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.[/size][/font]
[color=#000][font=Simsun][size=13px]【资料下载】[/size][/font][/color][url=http://down.tingroom.com/english/36055.html]大学英语四级(选词填空)专项训练[/url]
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