首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Researchers have found that REM (rapid eye movement) sleep is important to human beings. This type of sleep generally occurs fou
Researchers have found that REM (rapid eye movement) sleep is important to human beings. This type of sleep generally occurs fou
admin
2017-04-26
19
问题
Researchers have found that REM (rapid eye movement) sleep is important to human beings. This type of sleep generally occurs four or five times during one night of sleep lasting five minutes to forty minutes for each occurrence. The deeper a person’s sleep becomes, the longer the periods of rapid eye movement.
There are physical changes in the body to show that a person has changed from NREM (non-rapid eye movement) to REM sleep. Breathing becomes faster, the heart rate increases, and, as the name implies, the eyes begin to move quickly.
Accompanying these physical changes in the body there is a very important characteristic of REM sleep. It is during REM sleep that a person dreams.
According to the passage, how often does REM sleep occur in one night?
选项
A、Once.
B、Twice.
C、Four or five times.
D、Forty times.
答案
C
解析
根据文中第一段第二句的提示,可知REM一晚上发生四到五次。
转载请注明原文地址:https://kaotiyun.com/show/H1iC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Yourbody,whichhascloserelationswiththefoodyoueat,isthemostimportantthingyouown,soitneedspropertreatmentan
DuringtheOlympicGames,peoplefromallovertheworldcometogetherinpeaceandfriendship.ThefirstOlympicGamesthatwe
Whatdowethinkwith?Onlythebrain?Hardly.Thebrainistikeatelephoneexchange.Itistheswitchboard,butnotthewhole
Ifyouseesomeonedrowning,speedisveryimportant.Onceyougethimoutofthewater,ifheisn’tbreathing,youhavefourmi
Ofalltheproblemsfacingmodernastronomers,perhapsthemostfascinatingoneis"canintelligentlifeexistelsewhere?"Since
Luckily,thebacktiresoftheircarstayedontheroad.Otherwise,theyoungcouplewouldhavedrivenrightintoapittwentyf
Hewasbusyyesterday;otherwisehe______tothemeeting.
Ididn’tknowtheanswer,______.
HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou【C1】______dobothatthesame
HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou【C1】______dobothatthesame
随机试题
A、0B、1C、eD、-∞D
患者,女,35岁。长期便秘,近两个月来排便时及排便后剧烈疼痛,粪便表面带少量出血,考虑最可能是()。
不属于非处方药的是
瓦斯压力是衡量煤层瓦斯含量大小的一个重要指标,也是抽放瓦斯和防止煤与瓦斯突出的重要依据之一。下列选项中,不属于瓦斯压力测定的方法是()。
关于砌体结构房屋预防地震经常采用的措施的说法,不正确的是()。
甲曾担任某国有独资公司董事,后因违反规定造成国有资产重大损失被免职。根据企业国有资产法律制度的规定,甲自被免职之日起一定期限内,不得再担任国有独资公司董事。该期限是()。
建立现代企业制度是国有企业改革的重要内容之一。()
在《题软屏》中,形容吴山为“提兵百万西湖上,立马吴山第一峰”的人物是()。
一个人在对现实的稳定的态度和习惯化了的行为方式中表现出来的人格特征是()
有三个关系R、S和T如下:则由关系R和S得到关系T的操作是
最新回复
(
0
)