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、Weakened short-term memory. B、Weakened strength. C、Poor decision-making ability. D、Poor concentration. B
A、Weakened short-term memory. B、Weakened strength. C、Poor decision-making ability. D、Poor concentration. B
admin
2010-01-05
80
问题
Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic of sleepiness in the United States. The beginning of this sleep-deficit crisis can be traced to the invention of light bulb a century ago. In the 18th or 19th century, the average person used to sleep about 9. 5 hours a night. The best sleep habits were forced on people of that time, because it was dark and people had nothing to do in the evening on the farm.
By the 1950s and 1960s, the sleep schedule had been reduced dramatically to between 7.5 and 8 hours on average. Most people had to wake to an alarm clock. People cheat on their sleep, but they don’t realize they are doing it. They think they are OK because they can get by on 6.5 hours, when they really need 8 hours or even more to feel ideally vigorous.
Perhaps the most merciless robber of sleep, researchers say, is the complexity of the day. Whenever pressure from work, study and family, etc. mounts, many people consider sleep the least expensive item on his program. In the United States, one is considered dynamic if he says he only needs 5 hours’ sleep, whereas if he has to get 8.5 hours, people think he lacks drive and ambition.
The consequences of sleep deficit are obvious. When researchers put subjects through a set of psychological and performance tests, they found that people in sleep deficit showed weakened short-term memory as well as poor abilities to make decisions and to concentrate.
选项
A、Weakened short-term memory.
B、Weakened strength.
C、Poor decision-making ability.
D、Poor concentration.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/2mdK777K
0
大学英语六级
相关试题推荐
Withoutreadingtherequiredbooksbeforeclasses,studentswillfinditdifficulttounderstandtheclass.
IbecameateacherbecauseIpreferredbooksandpeople________politics.
Peoplewhoarenotself-confidentdependtoomuchonthepraiseofothersinordertofeelgoodaboutthemselves.
Alotofyoungpeoplefinditdifficulttogetajob,especiallyinthefirstfewmonthsaftertheyleaveschool.Thisismuchm
Decision-makingisacomplexbusinesssubjectwhichcombinesthemostcomplicatedelementsoftheoperationaland(36)______asp
I______(打算订阅)onedailynewspaperandoneweeklymagazine.
Forsomeeducators,thereisnothingwrongwithfunandgames.AgroupcalledtheEducationArcaderecentlyhelda(36)______in
A、Becauseofthetechnologyprogress.B、Becauseofthecomputerrevolution.C、Becauseoftheinventionofcomputer.D、Becauseof
A、It’sveryinteresting.B、It’smuchthesame.C、It’sverytiring.D、It’sveryexciting.B
PreparingforTestsIdeallyitshouldbeloveoflearning,achievement,andself-improvementthatpromptsalllearning.But
随机试题
女性,25岁,近半年来经常过分担心自己会出现不好的事情,终日心烦意乱,坐卧不宁,注意力难以集中,失眠,对日常生活中的事物失去兴趣,以致工作受到严重影响,由家人送入医院。用地西泮对该患者治疗的常用剂量是()
男性,74岁,间断咳嗽、咳痰、喘憋15年,每年冬季症状可持续两个月以上。近1周受凉后出现发热、咳痰和喘憋加重,经抗生素治疗后症状明显缓解,既往有大量吸烟史。查体:轻度发绀,双肺叩诊呈过清音,呼吸音低。最可能的诊断是
属于我国“全面控制药品质量”科学管理-的法令性文件为
以下有关混合爆炸气体爆炸极限范围影响因素说法正确的是()。
房地产开发企业应对所售商品房承担质量保修责任,当事人应在合同中就()内容作出决定。
站在中国的立场上,___________从今天已经知道的全部埃及古代精神成果和实用器物看,也没有哪一样会使中国古代朝野欣喜,这就使交流失去了基础;如果兵戎相见,___________,中国皇帝不会远征埃及是确定无疑的,而法老的船队要到中国并战而胜之,也几乎
法治和民主的确有一种既互相支持又互相制约的_________关系。民主体制最能够尊重和维护法治。另一方面,没有法治的民主容易被滥用而产生灾难性的_________。填入划横线部分最恰当的一项是:
设n阶矩阵证明:行列式|A|=(n+1)an。
设有以下语句:typedefstructTT{charc;inta[4];}CIN:则下面叙述中正确的是()。
【T1】________,themostimportantthingwhenchoosingahotelforaninternationalconferenceisthemeetingroomorrooms.Fore
最新回复
(
0
)