【单选题】U. S. researchers suggest sleeping can help us remember things we have just learnt . 
A、team from Northwestern University  __51__  that a 90-minute nap (小睡)can help people learn a new skill . The  __52__  on their research is published in the June edition of the journal Nature. The scientists say : “Information acquired during waking can be reactivated (重新激活) during sleep ,   __53__  memory stabilization .” Test volunteerspracticed musical tunes before and after a short sleep .   __54__  the nap , the researchers played one of the tunes the volunteers had practiced . The team found that the participants made  __55__  errors when playing the tune that had been played while they slept .Study co-authorDr Paul J . Reuber points out the research might not work  __56__  learning a foreign language while you sleep . He said : “The critical  __57__  is that our research shows that memory is strengthened for something you’ve already learned . ”He added : “Rather than learning something  __58__  in your sleep , we ‘re talking about enhancing an existing memory by reactivating information recently acquired .”  __59__  ,Dr Reuber did say there were possibilities for language learners :“If you were learning  __60__  to speak in a foreign language during the day , for example , and then tried to reactivate those memories during sleep , perhaps you might enhance your learning ,”he said .   
A、claim   
B.article
C.statement 
D.lecture
网考网参考答案:B
网考网解析:
[解析]根据语境可知,空格所在处的意思应为:有关研究的_______发表在《自然》杂志6月版上。各项的意思是:claim“要求”; article“文章”;statement“声明”;lecture“讲座”。所以,答案是B。
                 
				 
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