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 term biological clock is applied to the means by which living things adjust their activity patterns, without any【B1】______ c
The term biological clock is applied to the means by which living things adjust their activity patterns, without any【B1】______ c
admin
2015-10-18
45
问题
The term biological clock is applied to the means by which living things adjust their activity patterns, without any【B1】______ cue, to the time of day, or the month, or the year. The biological clocks seem to be beautifully【B2】______ the needs of living things. They are affected but little, if at all, by drugs, chemicals, or wide temperature difference —【B3】______ which may alter substantially the rates of all ordinary processes of the body.
The nature of the biological clocks’【B4】______ is still a mystery. Two quite different theories can【B5】______ them. According to the first of these theories, each individual contains its own independent timing system. This is believed to have【B6】______, aided by natural selection, as an adaptation to the rhythmic environment. It has now become independent of the environment. The other theory holds that living things react【B7】______ to their rhythmic physical environment. The setting of their biological clocks, therefore,【B8】______ a constant adjustment to subtle environment forces. But the search for the【B9】______ timing system has been futile thus far. Not only has no independent timing system ever been discovered, but there has not yet been even a guess【B10】______ its nature.
【B3】
选项
答案
factors
解析
根据空格后的定语从句可知,此空应填名词作定语从句的先行词。factor“因素”,注意不要忘了词尾加-s。
转载请注明原文地址:https://kaotiyun.com/show/Hoe7777K
0
大学英语四级
相关试题推荐
Weallliketofeelneeded.Butnewresearchsuggestshavingasenseofpurposeisgoodforourhealth,too.Inastudyof7
Weallliketofeelneeded.Butnewresearchsuggestshavingasenseofpurposeisgoodforourhealth,too.Inastudyof7
JusticeisoneofthemostpopularcoursesinHarvard’shistory.Nearlyonethousandstudents【B1】______Harvard’shistoricSande
Forthispart,youareallowed30minutestowriteashortessay.Youshouldstartyouressaywithabriefdescriptionofthepi
FreeSchoolMealsA)MillionsofAmericanschoolchildrenarereceivingfreeorlow-costmealsforthefirsttimeastheirparents
A、At6:10.B、At6:30.C、At6:40.D、At7:00.D女士说他们应该抓紧时间,否则就赶不上开幕式了;男士劝女士不用担心,因为现在才六点半,半个小时内一定能赶到。由此可以推断,开幕式七点开始。
A、Tom’spersonality.B、Thetemperature.C、Aheatedargument.D、Thestyleofahat.A男士说Tom是一个心地善良且很友好的人,女士则说她听人说Tom的脾气不好,一旦谈到他不认
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.Butburyingone’snoseinabookhasalwaysbeensomewha
Itisatruthuniversallyacknowledgedthatamarriedwomaninpossessionofalargefortunewillprobablyspendmostofitonh
A、WeatherpatternsthatcanaffectFlorida.B、Howstrongwindsdevelopintoahurricane.C、Memoriesofarecentstorm.D、Plannin
随机试题
养阴清肺汤的君药是()。
孕8~12周易发生不全流产的主要原因是()
合同的变更是指()。
案例五:李先生打算为刚上小学的儿子筹备大一的开支。他准备采用教育储蓄的方式进行。为此,他向理财规划师咨询有关问题。根据案例五,回答下列问题:假设开户日1年期、2年期、3年期、5年期的整存整取定期储蓄存款利率分别为3.87%、4.41%、5.13%和
认股权证的价格杠杆作用,表现为认股权证价格要比其可选购的股票价格的上涨或下跌速度慢得多。( )
宪法制定的主体是()。
Intel 8250是可编程串行接口芯片,下面功能( )不能通过对它编程来实现。
不管困难多大,我们都不会失去信心。
Iraqilawmakersareexpectedtovoteonthe【D1】______agreementbyWednesday,whichwillkeeptheUStroopshereuntiltheendof
A、Havethesameoriginwiththecalligraphy.B、Sharesomecommonfeatureswithpoetry.C、CombinetraditionalChinesepaintingte
最新回复
(
0
)