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
外语
A、Stage One. B、Stage Two. C、Stage Three. D、Stage Four. AAt which stage is sleep called dozing? 细节题。文章分别介绍了睡眠的四个阶段,一些人把第一个阶段叫做sle
A、Stage One. B、Stage Two. C、Stage Three. D、Stage Four. AAt which stage is sleep called dozing? 细节题。文章分别介绍了睡眠的四个阶段,一些人把第一个阶段叫做sle
admin
2009-09-12
39
问题
No one knows exactly why we sleep. But scientists have learned a lot about how we sleep, From sleep experiments, scientists have learned that there are four different stages of sleep.
When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people call this kind of sleep dozing. Scientists call it Stage One sleep. Next, if you are not awakened, you drift into a deeper sleep. Your pulse and breathing become even slower than they were during Stage One sleep. But you can still be awakened quite easily. If you take a cat nap, you probably will not get any further than this stage of sleep, which is called Stage Two.
If you sleep longer than about twenty minutes, you go into the third stage of sleep. Your body is very relaxed. It would take a loud noise to wake you up.
You have probably heard of people who walk in their sleep. No one knows what makes people sleepwalk. But a person can sleepwalk only during Stage Four. This is the deepest kind of sleep. If someone wakes you up during stage four, you might feel very confused. It might take you a few minutes to get used to being awake.
选项
A、Stage One.
B、Stage Two.
C、Stage Three.
D、Stage Four.
答案
A
解析
At which stage is sleep called dozing?
细节题。文章分别介绍了睡眠的四个阶段,一些人把第一个阶段叫做sleep dozing。
转载请注明原文地址:https://jikaoti.com/ti/anDFFFFM
0
大学英语四级
相关试题推荐
WhatIfYouCouldLearnEverythingA)Imagineeverystudenthasatirelesspersonaltutor,anartificiallyintelligentandi
FiveProblemsFinancialReformDoesn’tFixA)Thelegislationconcerningfinancialreformfocusesonhelpingregulatorsdete
It’snormaltothinkofaconversationastakingplacebetweenpeoplewhoareinthesameroom,surroundedbythesamesetofph
Doyouwanderaimlesslythroughlife,takingeachdayasitcomes?Anewresearchshowsthatatanyage,havingasenseofpurpo
AreModernKidsCoddled?A)Wouldyouletyourfourth-graderridepublictransportationwithoutanadult?Probablynot.Stil
A)Whatmakesabusinessideagood?Haveyoueverthoughtyouhadagreatideaforabusinessbutdidn’tdoanythingaboutit,o
A、Hegothisdoctor’sdegreeaheadofschedule.B、Heputforwardaconceptthatisnowthebasisforsupercomputers.C、Hebecame
A、Itiseasyfromtheverystart.B、Itimproveshiscomputerknowledge.C、Itisverycomplicatedforhim.D、Itbecomeseasieron
A、Hedoesn’tlikeitshistoricalatmosphere.B、HethinksthenightlifethereistoonoisyC、Hedoesn’tknowmuchaboutit.D、He
Chalkup(记下)anotherwinforcomputers.Software【C1】________attheUniversityofRochesterinNewYorkhasoutstripped(超过)hum
随机试题
社会主义“四有”新人的四有是指有理想、有文化、有纪律及
冯女士,第一孕,妊娠40周,初产妇。临产6小时,宫口开大3cm;临产11小时,宫口开全,先露头,先露“0”,胎心正常。阴道检查后,听诊胎心:164次/min,应立即
精血津液“得温而行,得寒而凝”,反映了气的哪项作用
根据《中华人民共和国药品管理法实施条例》,中药饮片的标签不需注明的内容是
法院受理叶某涉嫌故意杀害郭某案后,发现其可能符合强制医疗条件。经鉴定,叶某属于依法不负刑事责任的精神病人,法院审理后判决宣告叶某不负刑事责任,同时作出对叶某强制医疗的决定。关于此案的救济程序,下列哪一选项是错误的?
(2017年第17题)图示结构横截面尺寸相同时,A点竖向位移最大的是()。
把电力变压器的(),用电压表测出高压和低压绕组的端电压,高压侧与低压侧电压之比即为变压器变比。
我国出口某货物,成交价格为费城US$1000(折合人民币8500元),已知运费折算为1500元人民币,保费为50元人民币,出口税率为15%,则海关应征关税税额为()。
在国际期货市场上,保证金制度一般具有的特点包括()。
某气泡由湖底向湖面运动,已知湖水越深温度越低,如果水的阻力不计,那么它的运动情况是()。
最新回复
(
0
)