【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、similarity
B．difference
C． viewpoint
D．response