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?【31】the physiological bases of the need for sleep remain conjectural (猜想), rendering conclusiv
How much sleep does a person need?【31】the physiological bases of the need for sleep remain conjectural (猜想), rendering conclusiv
admin
2013-04-11
89
问题
How much sleep does a person need?【31】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【32】from this evidence is【33】there is great variability among individuals in total sleep time. For adults,【34】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【35】and reliable figures on sleep time, including those cited here, come from studies in sleep laboratories, where EEG criteria are employed.
【36】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,【37】the sleep time drops sharply; by two years of age, it may【38】from nine to 12 hours. Decreases to approximately six hours have been observed among the elderly.
【39】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【40】in these sleep stages are as striking as age-related changes in total sleep time.
选项
A、is spent
B、are spent
C、spent
D、spending
答案
C
解析
此处所选项不能是谓语动词,因为后面已经有are as striking as…作谓语了。因此排除A.is spent和B.are spent。那么空白处内容只能是从属于前面sleep time的修饰成分。“所花的睡眠时间”不能用表示主动意思的spending,而spent含有完成、被动的意思,符合要求。
转载请注明原文地址:https://kaotiyun.com/show/1Hii777K
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
Wilson:Areyoufeelinganybettertoday?Ihearyougottheflu.Jim:______
Thispassagediscussesthe______approachtohumanemotions.Accordingtothispassage,aman’jealousyismainlyfocusedon____
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport:thedamageanddeath
Floodscausebillionsofdollarsworthofpropertydamage______.
Anystudentwho______hishomeworkisunlikelytopasstheexamination.
Ann:Doyoustillhaveaheadache,Bill?Bill:Yes,Ido.AndnowIhaveafeverandcoughconstantly.Ann:______.
Interviewer:Sowhatdoyoudo,Tony?Tony:I’mahairdresser.Interviewer:Oh.______?Tony:Well,Ilovemycustom
Theearlytypewritersproducedlettersquicklyandneatly;thetypists,__________couldn’tseetheirworkontheirmachine.
Mostpeoplehavecometorealizethatitisabouttimethegovernment______furthermeasurestocontrolthepopulation.
随机试题
下列不属于美国公务员工资种类的是
注射TAT治疗破伤风的机制是
A.毛细支气管炎B.腺病毒肺炎C.金黄色葡萄球菌肺炎D.肺炎链球菌肺炎E.肺炎支原体肺炎以下病例中最可能的诊断是胸部X线常见肺浸润,多发生肺脓肿、肺大疱和脓胸、脓气胸,其病为
漏肩风肩外侧疼痛明显时,应循经加用()
某承受水平力的灌柱桩,直径为800mm,保护层厚度为50mm,配筋率为0.65%,桩长30m,桩的水平变形系数为0.360(1/m),桩身抗弯刚度为6.75×1011kN.mm2,桩顶固接且容许水平位移为4mm,按《建筑桩基技术规范》(JGJ94—200
下列各项存货中,其可变现净值为零的有()。
发生特大旅游安全事故后,发生单位应在多长时间之内写出书面事故报告?()
粤菜在工艺特点上有“五滋六味,调味基础”之说。其中的“六味”有()。
GivetheSenatesomecredit:inshapingthecurrentimmigration-reformbill,ithascomeupwithoneideathatalmosteverybody
某会计网校的刘老师正在准备有关《小企业会计准则》的培训课件,她的助手已搜集并整理了一份该准则的相关资料存放在Word文档“《小企业会计准则》培训素材.docx”中。按下列要求帮助刘老师完成PPT课件的整合制作。将演示文稿按下列要求分为5节,并为每节
最新回复
(
0
)