首页
登录
职称英语
[audioFiles]audio_ezfm_0348(20104)[/audioFiles]
[audioFiles]audio_ezfm_0348(20104)[/audioFiles]
游客
2023-11-19
35
管理
问题
选项
答案
Sleep
Sleep is part of a person’s daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you first drift off into sleep, your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will slow and become quite regular. Your brain waves slow down a bit, too, with a rhythm of rather fast waves predominating for the first few minutes. This is called Stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through Stage 2 and Stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then about 40 to 69 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain will show the large slow waves. This is Stage 4 sleep.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3200029.html
相关试题推荐
[audioFiles]audio_ezfm_0095(20103)[/audioFiles]Thereareveryoftenstrongo
[audioFiles]audio_ezfm_0379(20103)[/audioFiles]
[audioFiles]audio_ezfm_0071(20103)[/audioFiles]Overthelastfewyearsvideo
[audioFiles]audio_ezfm_0188(20103)[/audioFiles]The
[audioFiles]audio_ezfm_0048(20103)[/audioFiles]Formanyyears,T-shirtswe
[audioFiles]audio_ezfm_0059(20103)[/audioFiles]Adogisthemostusefulan
[audioFiles]audio_ezfm_0358(20103)[/audioFiles]Therearemanyaspectstoh
[audioFiles]audio_ezfm_0308(20103)[/audioFiles]
[audioFiles]audio_ezfm_0260(20103)[/audioFiles]
[audioFiles]audio_ezfm_0224(20103)[/audioFiles]Ame
随机试题
DorothyCrowfootHodgkinWhenDorothyCrowfootHodgkinwasten
WhichofthefollowingitalicizedphrasesindicatesCAUSE?A、Withthefloorweta
Putonmoreclothes,______youwillcatchcold.A、orratherB、onthecontraryC
Innearlyeverytownorcitycenterint
()即一种行政权力和学术权力相对平衡,两者相互制约的高等管理模式。
以下关于文档测试的说法中,不正确的是()A.文档测试需要仔细阅读文档,检查每个
研读古代文化经典时,教师提醒学生梳理文中重要字词。下列字词释义不正确的是( )
引起尿路感染的病原体最多见的是A:葡萄球菌 B:变形杆菌 C:副大肠埃希菌
新生儿出血的治疗应选用A.氨甲苯酸B.卡巴克络(安络血)C.鱼精蛋白D.维生素B
建设工程进度监测系统过程包括:①实际进度与计划进度的比较;②建立进度数据采集系统
最新回复
(
0
)