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 conc
How much sleep does a person need?【C1】______the physiological bases of the need for sleep remain conjectural(猜想), rendering conc
admin
2016-02-21
36
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.
【C9】
选项
A、What
B、It
C、That
D、As
答案
D
解析
本题空白处所缺词需具备双重作用:既作从句主语,又要指代后面句子的内容。只有as具备这种用法。
转载请注明原文地址:https://jikaoti.com/ti/7XUjFFFM
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
Accordingtothespeaker,theproblemwith"insidervolumes"isthatthey______.Whenthespeakersaysthathesimultaneously
Thesoftwareisapopulartoolinbusiness,whereit______andsimplifiessuchproceduresasbudgeting.
SpeakerA:We’vemadeanappointmentwiththestudents.We’llmeetat7inthemorning.Canyoucomeontime?SpeakerB:I’mafr
Guest:Oh,it’steno’clock.I’dbettergonow.Host:______.
Agoodmodernnewspaperisanextraordinarypieceofreading.Itisremarkablefirstforwhatitcontains:therangeofnewsfro
Manager:______Secretary:Someonedidcall.ButIcanhardlyunderstandthedialectheused.
HewasnotasactiveasIhad______himtobe.
Theauthorbelievesthatsportingactivities______.Whichofthefollowingbestsummarizesthemainideaofthepassage?
Whatmatters______notwinningbutparticipating.
Shegota______jobwhileshewaswaitingtogototheuniversity.
随机试题
A.阴道分泌物增多,呈乳白色黏液状,伴腰骶部疼痛及下坠感B.排尿困难,白带增多呈脓性,外阴烧灼感C.不孕,消瘦,输卵管碘油造影呈串珠状D.高热,白带增多,子宫及附件区压痛,WBC升高E.卵巢囊肿病史,运动后突发一侧下腹痛,B超检查囊肿消失,盆腔有少
A.高压氧疗B.持续低流量给氧C.无控制性给氧D.鼻导管持续高浓度给氧E.呼气末正压给氧(2002年)肺炎病人所致缺氧的治疗采用
当牙合力超过牙周组织支持潜能时,最终的病理改变为
体内某些胺类在生长旺盛组织(胚胎、肿瘤)中含量较高,它是调节细胞生长的重要物质,该胺是
下列关于用反算法求取滑动面抗剪强度参数的表述,哪些选项是正确的?
在经济学中,新增一个工人所增加的产出量被称为()。
A、 B、 C、 D、 C图形中左边部分依次向下移动,右边部分依次向上移动。
描写就是用生动形象的语言,把人物或景物的状态具体地描绘出来。从描写的角度分,可分为正面描写和侧面描写。正面描写是指直接展现景物、环境的特点或通过描写人物的外貌、心理和行动来体现人物的个性特征。侧面描写又叫间接描写,是从侧面的角度烘托人物形象、景物特征或相关
处理器中对用户可见的寄存器是()。
YouarethemanagerofthePersonnelDepartmentofacompany.Yourcompanyhasconductedasurveyoftrainingneeds.Lookatthe
最新回复
(
0
)