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
考研
How much sleep does a person need?【C1】______the physiological bases of the need for sleep remain conjectural (猜想), rendering con
How much sleep does a person need?【C1】______the physiological bases of the need for sleep remain conjectural (猜想), rendering con
admin
2012-07-23
57
问题
How much sleep does a person need?【C1】______the physiological bases of the need for sleep remain conjectural (猜想), rendering conclusive answers to this question impossible, much evidence has been gathered on how much sleep people do in fact obtain. Perhaps the most important conclusion to be【C2】______from this evidence is【C3】______there is great variability among individuals in total sleep time. For adults, 【C4】______between six and nine hours of sleep as a nightly average is not unusual, and 7.5 hours probably best expresses the norm. Such norms, of course, forms inevitably vary with the criteria of sleep employed. The most【C5】______and reliable figures on sleep time, including those cited here, come from studies in sleep laboratories, where EEG criteria are employed.
【C6】______consistently has been associated with the varying amount, quality, and pattern of electrophysiologically defined sleep. The newborn infant may spend an average of about 16 hours of each 24-hour period in sleep, 【C7】______the sleep time drops sharply; by two years of age, it may【C8】______from nine to 12 hours. Decreases to approximately six hours have been observed among the elderly.
【C9】______will be discussed from below, EEG sleep studies have indicated that sleep can be considered to consist of several different stages. Developmental changes in the relative proportion of sleep time【C10】______in these sleep stages are as striking as age-related changes in total sleep time.
【C3】
选项
A、how
B、what
C、whether
D、that
答案
D
解析
本题的考点是表语从句引导词,后面there be从句语义完整,无须任何添加,故选择一个起语法作用的引导词that即可。
转载请注明原文地址:https://kaotiyun.com/show/ABii777K
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
Whatkindofpersonneedsthisservice?Themainpurposeofthispassageis______.
Whatkindofpersonneedsthisservice?Howmuchwillitcostyouifyouwantfiveregularpapersandtwographstobetyped?
Thestatement"ThebusinessofAmericaisbusiness"probablymeans"______".Governmentisbelievedtodifferstrikinglyfromb
Thebesttitleforthepassageis______.ChildreninAmericaaretaughtto______.
BeforehighschoolteacherKimberlyRughgotdowntobusinessatthestartofarecentschoolweek,shejokedwithherstudents
Formostkindsofactivities,alargegroupofpeoplecanaccomplishmoreandhavemorefunthanonepersonalone.Forexample,
Attheresortstouristsmaydothefollowingexcept______.WhatisadvertisedinB?
A EmbassyVacationResorts California,FloridaandHawaiiAttheEmbassyVacationResorts,ourvac
AtthebeginningofthecenturytherewasabigfarmcalledHollywoodRanch.ItwasnearLosAngelesinCalifornia.Afewyears
AtthebeginningofthecenturytherewasabigfarmcalledHollywoodRanch.ItwasnearLosAngelesinCalifornia.Afewyears
随机试题
随着互联网的迅速发展及其对人类生活产生的巨大影响,越来越多的人喜欢在网上购物。对此现象,人们持有不同的态度。请以ShoppingOnline为题,根据表格内容并结合自己的观点写一篇短文。注意:1.字数在120词左右;2.可适当增加细节,使文章
当发展趋势呈下列哪种样式时,移动平均数与跨越期取值大小关系不大?
动物临床表现出现皮温降低,恶寒战栗,被毛松乱,常提示其在
A.连钱草B.萹蓄C.金钱草D.瞿麦E.冬葵子能破血通经的是()。
自然人和法人是( )的概念。民事法律关系是由民法规范调整的以( )为内容的社会关系。
下列各项中,应当作为原始凭证构成要素的有( )。
下列项目中属于不涉及现金收支的投资活动和筹资活动的有()。
“一题多解”和“一事多写”旨在培养学生的()。
适用治安管理处罚的主体是公安机关或司法机关。()
若在某窗体模块中有如下事件过程PrivateSubCommand1_Click(Integer)……EndSub
最新回复
(
0
)