首页
登录
职称英语
The normal human daily cycle of activity is some 7-8 hours’ sleep alternatio
The normal human daily cycle of activity is some 7-8 hours’ sleep alternatio
游客
2023-11-10
6
管理
问题
The normal human daily cycle of activity is some 7-8 hours’ sleep alternation with some 16-17 hours’ wakefulness and that the sleep normally coincides(1)_____ the hours of darkness. Our present concern is how easily and to what extent this(2)_____ can be modified.
The question is not merely an academic one. The ease with which people can change from working in the day to working at night is a(3)_____ of growing importance in industry where automation (4)_____ round-the-clock working of machines. It normally(5)_____ from five days to one week for a person to adapt to a(6)_____ routine of sleep and wakefulness,(7)_____ during the day and working at night.(8)_____, it is often the case in industry that shifts are changed every week. This (9)_____ that no sooner has he got used to one routine(10)_____ he has to change to another, (11)_____ much of his time is spent neither working nor sleeping very(12)_____.
One answer would seem to be(13)_____ periods on each shift, a month, or(14)_____ three months.(15)______, recent research has shown (16)_____ people on such systems will go back to their(17)_____ habits of sleep and wakefulness during the weekend and that this is quite enough to destroy any(18)_____ to night work built up during the week. The only real solution appears to be to(19)_____ the night shift to those permanent night workers whose(20)_____ may persist through all week-ends and holidays. [br] (3)
选项
A、problem
B、difficulty
C、trouble
D、matter
答案
D
解析
matter通常指“需要思考的某个情况”.本句的“人们能否轻易地从白天工作改为晚上工作”就是需要思考的情况,故选D。problem“问题”强调给人造成困难的事情,用于此不合适。difficulty“困难”;trouble“麻烦”。
转载请注明原文地址:https://tihaiku.com/zcyy/3175550.html
相关试题推荐
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
随机试题
ElevendaysafterhersonBenjamin’sbirthbyC-section,LindaCoaleawokei
Today,studentswhowanttolearnEnglishintheUShaveawidechoiceofco
工程计量的方式包括()。A.监理人独立计量的组织方式 B.承包人独立计量
某患者在胃大部分切除后出现巨幼红细胞性贫血的原因是对哪项物质吸收障碍A.蛋白质
利率风险的主要形式有()。A.汇率风险 B.基准风险 C.价格波动风险
乙醇擦浴时所用乙醇的浓度为()。A.45%~55% B.25%~35% C
下列属于贷款押品的有()。A.银行本票 B.银行承兑汇票 C.上市公司股票
有效成分为芦丁的中药是A.槐花 B.银杏叶 C.黄芪 D.黄芩 E.葛根
甲公司是一家生产遮阳用品的企业。2013年,公司在保留原有业务的同时,进入雨具
下列关于施工现场临时用电要求中,正确的有()A.采用TN—S接地、接零保护系统
最新回复
(
0
)