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
58
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
JusticeisoneofthemostpopularcoursesinHarvard’shistory.Nearlyonethousandstudents【B1】______Harvard’shistoricSande
PreparingforMoreExpensiveDegreesinEnglandA)Balancingatightbudgetisoneofthemostdifficultaspectsofbeingastude
A、Itclassifiedprisonersbasedonage.B、Itwasforoffendersofallages.C、Itpermittedprisonerstoworktogether.D、Itwas
A、HethinkstheycangiveTomalift.B、Heisn’tsurewhethertherewillbespaceforTom.C、Hethinkstheweatherwillbefine
A、Tocanceltheclass.B、Toaddtheclassattheendofthesemester.C、Tochangethetimeoftheclass.D、Tostudytheclasson
A、Themanshouldpracticehispronunciationoften.B、Togetoneselfunderstoodismoreimportantthanpronunciation.C、Shehasa
Father’sDayisacelebrationhonoringfathersandcelebrating【B1】______,paternalbonds,andtheinfluenceoffathersinsociet
A、Drinking.B、Sunbathing.C、Sleeping.D、Swimming.B信息明示题。短文第二段指出第一种旅行者Theyspendtheirdaysinthesunshine,即白天晒日光浴。所以选项B正确。
A、Theyaccountforthelargestproportion.B、90percentofthemarereasonable.C、Mostofthemarefordelayedairtickets.D、Fe
Wouldyoubehappierifyouspentmoretimediscussingthestateoftheworldandthemeaningoflife—andlesstimetalkingabou
随机试题
泡腾颗粒剂遇水产生的气体是
社会主义核心价值体系的基础是()
正常成年人红细胞生成的部位在()
对于精神障碍病因学中遗传因素研究方法应排除
根据《建筑安装工程费用项目组成》(建标[2003]206号)文件的规定,下列属于规费的是( )。
按照调查方式的不同,可以将教育调查法分为()
退潮,是鱼儿陷人生存困境;店铺倒闭,则是商家陷入经营困境。当他人陷入困境时,我们是该________,还是该伸手援助?将退潮的鱼儿放回海洋,进到临倒闭的店铺多选购商品,田中用他的善举教育了我们,也使我们意识到:退潮之后,周遭已再没有遮掩之物,此时最易看清人
Migrationisusuallydefinedas"permanentorsemi-permanentchangeofresidence".However,ourconcerniswithmovementbetween
试求极限(a>1)
VariationsinBritishAccents Language【T1】___________________aspeopletrytoexpressthemselvesindifferentwaystodifferen
最新回复
(
0
)