A.A busy day makes people forget things easily. |
B.People need a good night’s sleep after a busy day. |
C.A good night’s sleep helps memories. |
D.A good night’s sleep helps people forget a busy day. |
A.created through a speech synthesizer |
B.hard to understand |
C.a(chǎn)vailable at the beginning |
D.designed to test people’s ability of understanding |
A.is a hard-writing of the brain |
B.is not a process of storage |
C.is not a process of restorage |
D.will be mature with the help of sleep |
A.When people first remember something, the memory is in an “unstable state”. |
B.The brain will change those important unstable memories into stable. |
C.Once the memory become stable, it will never become unstable again. |
D.Sleep can protect memories from being harmed. |
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