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
30
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.
【B8】
选项
答案
involves
解析
空格所在句缺谓语,且该句主语为setting,故此空需要第三人称单数形式的动词。involve“包含,涉及”,词尾勿忘要加-s。
转载请注明原文地址:https://kaotiyun.com/show/Loe7777K
0
大学英语四级
相关试题推荐
A、Tellthestudentshowtoselecttheircourses.B、Advisethestudentstodoextracurricularactivities.C、Helpthestudentsto
A、Cloudy.B、Warm.C、Clear.D、Windy.C女士提议去爬山,问男士今天的天气怎么样;男士说天空蔚蓝,而且没有云,这种天气最适合爬山了。由此可知,今天天气晴朗。
A、Doctorandpatient.B、Teacherandstudent.C、Fatheranddaughter.D、Coachandplayer.A女士很担心自己的身体,并说不知道为什么老是很虚弱;男士劝女士不用担心,让她多做
A、Itmaysnowduringtheirvacation.B、Theymaynotvacationasplanned.C、Theymayneedmoremoney.D、Theymaymissgraduation.
A、Thecityhadmanyproblems.B、Thecityneededanewimagetoattractvisitors.C、Thenumberofvisitorswasfalling.D、Thepeo
A、Governmentshouldrespectideasofthepublic.B、Nuclearpowerislikelytoleadtoaccidents.C、Theconstructionwillcostlo
Forthispart,youareallowed30minutestowriteanessay.Youshouldstartyouressaywithabriefdescriptionofthepicture
A、Theroadsaretoocrowdedtodrive.B、It’sdifficulttotakeabusoratrain.C、Theyaretooyoungortoooldtodrive.D、Tra
A、Itstartedtorainwhenshewasatthebeach.B、She’dlikethemantogotothebeachwithher.C、Theforecastcallsformore
Wouldyoubehappierifyouspentmoretimediscussingthestateoftheworldandthemeaningoflife—andlesstimetalkingabou
随机试题
根据所掌握的知识,论述库存管理与控制的意义。
新生儿败血症护理措施,哪项是错误的()
肝素抗凝的主要作用机制是
溶浆→加药→制膜→干燥→分剂量→包装原料、附加剂→配液→滤过→分装→灭菌→质检
220~500kV电网的线路保护,振荡闭锁需满足以下要求()。
下列选项中,不属于事故应急预案在应急救援中的重要作用的是()。
申办下序单元工程的开工签证,承建单位必须凭上序单元工程的()进行申办。
教师职业开始出现始于【】
近代警察之所以在西欧国家最早产生,其原因之一就是资产阶级为了维护自己政治上的统治和经济上的残酷剥削。()
【B1】【B11】
最新回复
(
0
)