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
2016-03-29
87
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set-ting,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/CPe7777K
0
大学英语四级
相关试题推荐
Mostpeoplehaveoutsideinterestswhichtheypursueintheir【B1】______timeinordertokeepthemselvesamused.Wecalltheseho
A、Whentherearemorethantwelvepeople.B、Whentherearefivepeople.C、Whentherearefifteenpeople.D、Whentherearemoret
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universitieshavebecomeinstrumentsofnationalcompetitionas
奥运会是全球欢庆的体育盛事,对维护和平、增进友谊、促进文明都具有极其重要的意义。作为当今世界最具影响力的国家之一,中国非常愿意尽其所能推动奥林匹克运动。中国人民也强烈希望能够共享奥林匹克精神,参与奥运赛事,主办奥运盛会。在过去的三十年中,中国实行改革开放政
Differentthingsusuallystandfordifferentfeelings.Red,forexample,isthecoloroffire,heat,bloodandlife.Peoplesay
Today,airtravelisfarsaferthan【B1】______acaronabusymotorway.Butthereisadangerthatgrowseveryyear.Fromthemom
A、Itshouldonlybeattemptedbyexperiencedresearchers.B、Itmaycauseresearcherstoavoidpublishinggoodwork.C、Itiscurr
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
A、Itsbatteryisnotpowerfulenough.B、Itsbatteryisofenormoussize.C、Itcoststoomuchmoney.D、Itbreaksdowneasily.A短文
随机试题
女,50岁,左侧慢性脓胸伴左下肺支气管扩张,左下肺不张,左下肺支气管胸膜瘘。最适宜的手术方式是()
某老人74岁,脑出血后处于昏迷状态,长期进行管喂饮食。胃管已保留10天,社区护士正在为其更换新的鼻饲管。胃管插至咽部时,将头部托起,其目的是
美国市场营销专家劳特朋于20世纪90年代提出用新的4C理论取代4P理论。其主要内容包括()。
(2011年考试真题)E公司只产销一种甲产品,甲产品只消耗乙材料。2010年第四季度按定期预算法编制2011年的企业预算,部分预算资料如下:资料一:乙材料2011年年初的预计结存量为2000千克,各季度末乙材料的预计结存量数据如表1—2—1所示。每季
根据所给资料,回答下列问题。2015年1—3月,G市A区全区完成固定资产投资84.17亿元,同比增长6.1%,增速比去年同期回落4.3个百分点。其中,房地产开发投资31.52亿元,同比增长1.6倍。分产业来看,第二产业完成投资0.54亿元,同比下降73.
下列表述中,不符合我国土地资源特点的是:
“八五”末期该市普通高中在校生人数约为()万人。在2000年的在校学生中,本科生比专科生所占的比例多多少?()
已知矩阵相似。求x,y;
Thispassageisexcerptedfrommaterialpublishedin1997.Scientistshavebeenpuzzledbytheseemingdisparitybetweenmodels
A、Thewomannevertravelsbyplane.B、Bothspeakersfeelnervouswhenflying.C、Themanthinkstravelingbyairisquitesafe.D
最新回复
(
0
)