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
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
2015-01-09
58
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【C1】______the hours of darkness. Our present concern is with how easily and to what extent this【C2】______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【C3】______of growing importance in industry where automation【C4】______round-the-clock working of machines. It normally【C5】______form five days to one week for a person to adapt to a【C6】______routine of sleep and wakefulness, sleeping during the day and working at night. 【C7】______, 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【C8】______he has to change to another, 【C9】______much of his time is spent neither working nor sleeping every 【C10】______. One answer would seem to be【C11】______periods on each shift, a month, or even three months. 【C12】______recent research has shown that people on such systems will revert to go back to their【C13】______habits to sleep and wakefulness during the week-end and that this is quite enough to destroy any【C14】______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【C15】______may persist through all week-ends and holidays.
【C5】
选项
A、takes
B、spends
C、demands
D、asks
答案
A
解析
此处应选择A。固定句型It takes sb.some time to do sth.意思是“花费时间做什么”。根据句子可知,应选择takes。
转载请注明原文地址:https://kaotiyun.com/show/mTLO777K
0
考博英语
相关试题推荐
Noneofthestudentsintheclasslikesthemistress,whoisusedtobeing______ofeverythingtheydo.
TheindividualTVviewerinvariablysensesthatheorsheis______anonymous,statisticallyinsignificantpartofahugeanddive
Althoughtheexaminationhepassedwasnotimportant,hissuccess______himinhisambitiontobecomeadoctor.
ThehistoryofAfrican—Americansduringthepast400yearsistraditionallynarrated【1】anongoingstruggleagainst【2】andindiffe
Asthedirectorcan’tcometothereception,I’mrepresentingthecompany
TheordinaryfamilycolonialNorthAmericawasprimarilyconcernedwithsheerphysicalsurvivalandbeyondthat,itsowneconomi
Thereisadirectflightat3:00oraflightat7:30inthemorningthat______inLosAngeles.
Weallknowthatthenormalhumandailycycleofactivityisofsome7-8hours’sleepalternatingwithsome16-17hours’wakefu
Despitedecadesofscientificresearch,nooneyetknowshowmuchdamagehumanactivityisdoingtotheenvironment.Humansare
Realpolicemen,bothBritainandtheUnitedStates,hardlyrecognizeanyresemblancebetweentheirlivesandwhattheyseeonTV
随机试题
特异性免疫包括:___________、___________,分别由___________、___________细胞介导。
吴大爷是优抚对象,早年革命时在战争中落下了伤残。退役后安排到地方工作。吴大爷年轻时没有结婚,因此无儿无女只有自己一个人居住在分配的老房子中。随着吴大爷年龄的增长,早年因伤留下的后遗症越来越严重,这增加了吴大爷行动的困难,吴大爷居住的老房子年久失修,每到雨季
长于条达肝气、疏肝解郁的药物是
冠心病患者术前应用β受体阻滞剂至
6kV及以上无地线线路钢筋混凝土杆宜接地,金属杆塔应接地,接地电阻不宜超过下列哪项数值?()
“十一五”规划建议中对建设社会主义新农村提出要()。
企业出租无形资产时所取得的收入,应作为()。
依次在下列各句横线处填入词语,恰当的一项是()。①北京卢沟桥两边的石栏杆上雕刻着数以百计的石狮,这些狮子在风霜雨雪中已守桥七百多个________。②不同管理层次、不同岗位上的人员,不管其工作内容有多大的________,均有其工作的目标和重点。我们
Thereason______I’mwritingistotellyouaboutapartyonSaturday.
Whatisthepurposeofgovernment’sproposalsintheUnitedStates?
最新回复
(
0
)