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
15
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
Somepeopledonotlikeanythingtobeoutofplace;theyareneverlateforwork;theyreturntheirbooksontimetothelibrar
DuringtheOlympicGames,peoplefromallovertheworldcometogetherinpeaceandfriendship.ThefirstOlympicGamesthatwe
Ifyouseesomeonedrowning,speedisveryimportant.Onceyougethimoutofthewater,ifheisn’tbreathing,youhavefourmi
Ifyouseesomeonedrowning,speedisveryimportant.Onceyougethimoutofthewater,ifheisn’tbreathing,youhavefourmi
Oureatinghabitsareveryimportantforgoodhealthandastrongbody.Therearetimeswhenmostofuswouldrathereatsweets
Itisa______ridefromhishometotheshoppingcenter.
IcanclearlyrememberthefirsttimeImetMr.Andrews,myoldheadmaster,【21】thatwasovertwentyyearsago.Duringthewar,I
______thetelevision,thereisanimportantfootballmatchnow.
HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou【C1】______dobothatthesame
随机试题
在各种类型组织结构中,直线一职能参谋型结构与直线一参谋型结构没有差异。()
A、Toaskforadvice.B、Toblamethedoctor.C、Tochatwithafriend.D、Tomakeanappointment.A
女患者,31岁,每于两次月经中间阴道出血,量少,色紫黑,有血块,少腹两侧胀痛,胸闷烦躁,舌质有瘀点,脉细弦。其正确的治法是
所有者权益是指企业投资人对企业资产的所有权。()
注意的广度
1987年10月,美国股票市场遭受了一次大的价格下跌。在下跌后的几周里,股票的交易量也剧烈下降,大大低于前一年平均周交易量。但是,这一整年的交易量与前一年的交易量相比并没有明显差异。以下哪项如果正确,能最好地解释上面短文中提出的明显矛盾?
近代历史上,中国“不败而败”的对外战争是()
DespiteincreasedairportsecuritysinceSeptember11th,2001,thetechnologytoscanbothpassengersandbaggageforweaponsan
Thebalanceofpaymentsisastatisticalrecordofalltheeconomictransactionbetweenresidentsofthereportingcountryandr
WhenIdecidedtoquitmyfulltimeemploymentitneveroccurredtomethatImightbecomeapartofanewinternationaltrend.
最新回复
(
0
)