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
The normal human daily cycle of activity is of some 7-8 hours’ sleep alternation with some 16-17 hours’ wakefulness and that the
The normal human daily cycle of activity is of some 7-8 hours’ sleep alternation with some 16-17 hours’ wakefulness and that the
admin
2013-01-30
39
问题
The normal human daily cycle of activity is of some 7-8 hours’ sleep alternation with some 16-17 hours’ wakefulness and that the sleep normally coincides 46 the hours of darkness. Our present concern is with how easily and to what extent this cycle can be modified.
The question is no mere academic one. The ease with which people can change from working in the day to working at night is a 47 of growing importance in industry where automation invites round-the-clock working of machines. It normally 48 form five days to one week for a person to adapt to a 49 routine of sleep and wakefulness, sleeping during the day and working at night. 50 , it is often the case in industry that shifts are changed every week. This means that no sooner has he got used to one routine 51 he has to change to another, so that much of his time is spent neither working nor sleeping every 52 , one answer would seem to be nicer periods on each shift, a month, or even three months. 53 recent research has shown that people on such systems will revert to go back to their 54 habits to sleep and wakefulness during the week-end and that this is quite enough to destroy any adaptation to night work built up during the week. The only real solution appears to be to hand over the night shift to those permanent night workers whose 55 may persist through all week-ends and holidays.
选项
A、efficiently
B、good
C、easily
D、happily
答案
A
解析
此句话的意思是:既没有用于有效工作也没有用于有效休息。其他三项都不符合题意。
转载请注明原文地址:https://kaotiyun.com/show/K1hi777K
0
在职申硕(同等学力)英语
相关试题推荐
TheAemergenceofelectronicBfunds-transfertechnologyCmakespossibletochangethenatureofmoneyandtodivorceitDfromev
Theaimof"Noah’sArk"Projectisto______.Thebesttitleforthepassagemaybe______.
Theyprovideameansofkeeping______ofthethousandsofjournalpapersthatarepublishedmonthlyorquarterly.
I(sawthat)thelastupdatewasmadein(Januaryof)2002,soI(wonderedthat)thewebmaster(hadabandoned)thesite.
Sheshould______thosepresentatthemeetingtoarriveataclear-cutdecision.
Flushotsaregiveneveryfallasaprecautionagainstanepidemicthefollowingwinter.
Wewantyoutodescribealltheeventsofthatmorninginsequencewithoutanydelay.
Michael,anAmericanprofessionalbasketballplayer,isconsideredbymanytobethegreatestplayerinbasketballhistory.The
Youmayneverexperienceanearthquakeoravolcaniceruptioninyourlife,butyouwill______changesintheland.
Thenormalhumandailycycleofactivityisofsome7-8hours’sleepalternationwithsome16-17hours’wakefulnessandthatthe
随机试题
下列政策过程模型中注重反映和解释政策过程的社会本质的模型有()
下列指标中,属于项目部施工成本考核的有()。
信托
患者,女,62岁。左心衰竭入院,服用地高辛时出现了中毒症状,护士向其介绍洋地黄中毒的原因,但不包括
在用桥梁的承载能力检算评定,为确定各分项检算系数,必须完成的工作有()。
多用途地籍又可以称为(),是税收地籍和产权地籍的进一步发展。其目的不仅是为课税或产权登记服务,更重要的是为各项土地利用和土地保护,为全面、科学地管理土地提供信息服务。
旅游行政管理部门对导游进行处罚,吊销导游证的处罚决定权属于()。
旅游是一种集观光、娱乐、健身为一体的愉快而美好的活动。旅游业随着时代进步而不断发展。20世纪中叶以来,现代旅游在世界范围迅速兴起,旅游人数不断增加,旅游产业规模持续扩大,旅游经济地位显著提升,旅游活动日益成为各国人民交流文化、增进友谊、扩大交往的重要渠道,
Theairlineindustryiscuttingitslowestdiscountfaresmorewidely,moresubstantially,andearlierthisyearthanitnormall
WhichtwocountriesaretheleadingonesinappleproductionbesidestheUnitedStates?Theyare______.
最新回复
(
0
)