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 four
Researchers have found that REM(rapid eye movement)sleep is important to human beings. This type of sleep generally occurs four
admin
2015-08-19
35
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 charges 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 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、Third.
C、Four or five times.
D、Uncoutable.
答案
C
解析
根据文章第一段第二句,可知REM一晚上发生四到五次。
转载请注明原文地址:https://jikaoti.com/ti/ffpGFFFM
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
IwaswonderingthroughthestreetwhenIcaughtsightofastrangestore;therewasn’tanythingbutemptyshelvesatoneendof
Somepeoplehateeverythingthatismodern.Theycannotimaginehowanyonecanreallylikemodernmusic;theyfindithardtoac
Notlongago,Ihadmyfirston-linechat.Ithoughtitwouldbe【56】because.Ihaveheardsomanypeople【57】itinthatway.But
Thefirstandsmallestunitthatcanbediscussedinrelationtolanguageistheword.Inspeaking,thechoiceofwordsis【21】th
FromMondayuntilFridaymostpeoplearebusy【21】,butintheeveningsandonweekendstheyarefreeandenjoythemselves.Some
Americansareproudoftheirvarietyandindividuality,yettheyloveandrespectfewthingsmorethanauniform,whetheritis
Americansareproudoftheirvarietyandindividuality,yettheyloveandrespectfewthingsmorethanauniform,whetheritis
There【21】twomainkindsofsports.Thesetwokindsofsportsareteamsportsandindividualsports.Teamsportsaresuchsports【22
I’mseventeen.IhadworkedasaboxboyatasupermarketinLeangles.Peoplecametothecounterandyouputthingsintheirba
Grandmatoldthestoryinaverysad______andwewereallmoved.
随机试题
在计算机领域中通常用MIPS来描述计算机的
肿瘤性增生与炎性增生的根本区别是:
关于影像存储管理系统的叙述,错误的是
A.气逆证B.气滞证C.气闭证D.血瘀证E.血寒证患者饮冰啤酒后,脘腹痞胀不适,呃声频作,嗳气,舌象无异常,脉弦。其辨证为
在运用剩余法对居住用地土地价格进行评估时,对方法运用过程中有关技术参数的确定应注意的问题有()。
对信贷经营来说,对区域风险影响最大、最直接的因素是()。
在考察投资项目的相关现金流量时,下列属于无关现金流量的有()。
中国古代数学家对“一次同余论”的研究有_______的独创性和继承性,“大衍求一术”在世界数学史上的崇高地位是不容_______的。正因为这样,在西方数学史著作中,一直公正地称求解一次同余组的剩余定理为“中国剩余定理”。填入画横线部分最恰当的一项
在24×24点阵字库中,每个汉字的字模信息存储在多少个字节中?
A、Thecoach.B、Thecaptain.C、Aformerplayer.D、Abasketballfan.C①选项都是有关人物的身份,听音时注意人物的相关信息。②男士告诉女士球队的队员即将有新队服了,女士问为什么,男士告知是该球
最新回复
(
0
)