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
2011-01-17
69
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、unless
B、however
C、although
D、even if
答案
C
解析
本题空白前半句说婴儿每天要用大量的时间睡眠,后面却说睡眠时间急剧减少,显然这里需要一个表示让步关系的连词。A.unless表示条件;B.however表示转折,但是副词;D.ever if表示假设;C.although表示让步关系,符合要求。
转载请注明原文地址:https://kaotiyun.com/show/IvYi777K
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
Whentelevisionfirstbegantoexpand,veryfewofthepeoplewhohadbecomefamousasradiocommentatorswereabletobeeffect
Whatkindofpersonneedsthisservice?Ifyouhave20pagestobetyped,howlongdoesittaketogetthemfinished?
Somepsychologistsmaintainthatthinkingis______.Fewpeopleareabletolistentofamiliarmusicwithout______.
Howdoeswaterscarcityaffectpeople?Firstofall,it【B1】theirhealth.Itisnotthattheywilldieofthirst;rather,thepoo
Whatistheauthor’sattitudetowardhigh-techcommunicationsequipment?Theadvantageofemployeeshavingforeignlanguageski
WhichofthefollowingisNOTmentionedbytheauthorasaconsequenceofnewtechnologicaldevelopments?Whichofthefollowin
Americansbelievethateducationis______.WhichofthefollowingisNOTmentionedasimportanttosuccess?
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
INTHEGROUNDSOFAREGENCYMANSIONLuxurySelf-cateringHolidayCottagesintheheartoftheDevonshirecountryside.In
Whilestillinitsearlystages,welfarereformhasalreadybeenjudgedagreatsuccessinmanystates,atleastingettingpeop
随机试题
甲公司是一家建设中的企业,在筹建生产车间时,购入生产机器设备等大量固定资产,为了加强对固定资产的管理,请你为甲公司从固定资产购入、验收到付款的业务设计一套业务处理流程,并指出业务流程的控制要点。
下列何种手术,术前作阴道后穹窿部涂甲紫()。
睾丸间质细胞的主要生理功能是
固定资产与流动资产的区别有()。
()指对一个项目的结构进行逐层分解,以反映组成该项目的所有工作任务。
施工企业从建造合同签订开始至合同完成止所发生的直接费用和间接费用应计入()明细账。
某生产企业为增值税一般纳税人,2019年5月发生以下业务:(1)销售A产品取得收入为80万元(不含税),负责运送A产品而取得的运输收入(不含税)为8万元。(2)为了促销,以折扣方式销售B产品的销售额为200万元(不含税),折扣额20万元,向购买方另开发
在宏观经济分析的经济指标中,货币供给是()。
下列概念中属于《合同法》的协作履行原则具体体现的是()。
“敬业”的特征是()。
最新回复
(
0
)