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The author thinks sleep is a funny thing as it is necessary for human life. [br]
The author thinks sleep is a funny thing as it is necessary for human life. [br]
游客
2024-05-13
37
管理
问题
The author thinks sleep is a funny thing as it is necessary for human life. [br] While awake, people can produce ______ waves in their brains.
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答案
alpha or beta
解析
第3个小标题Sleep and the Brain部分的第1段第2、3句:A waking and relaxed person generates alpha waves,which are consistent vibrations at about 10 cycles per second.An alert person generates beta waves,which are about twice as fast.空白处需要waves的修饰成分。原文中的waking and relaxed和alert是awake的两个方面,故醒着时所产生的脑电波是alpha波或beta波。
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