一道很典型的英语四六级完形填空 请教答案 Theabilitytosleepinonechunkovernightgoesdownasweagebuttheamountofsleepweneedto52.welldoesnotchange,DrDrummondtoldtheAmericanAssociationfortheAdvancementofScienceconferenceinSanDiego.
一道很典型的英语四六级完形填空 请教答案
"The ability to sleep in one chunk overnight goes down as we age but the amount of sleep we need to 52. well does not change," Dr Drummond told the American Association for the Advancement of Science conference in San Diego.
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