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
26
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.
【B10】
选项
答案
as to
解析
as to为固定表达,表示“关于”。
转载请注明原文地址:https://jikaoti.com/ti/aBuFFFFM
0
大学英语四级
相关试题推荐
A、Taketheteno’clockbus.B、Comebackinfiveminutes.C、GotoNewYorkanotherday.D、Calltheairport.A综合推断题。开往纽约的公交车每半小时一
A、Heisthoughtful.B、Heishumorous.C、Heiscareless.D、Heishelpful.C综合推断题。女士说她再也不跟Bill一块儿走了,他竟然忘记把车停哪里了,由此可知,比尔是个比较粗心的人。
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universitieshavebecomeinstrumentsofnationalcompetitionas
A、Heisconfusedaboutthis.B、Hethinksthefairisprofitable.C、Hebelievesitistoocomplicated.D、Hethinksitisagreat
Officialhealthadvicethatsaidhouseholdchoreshelpkeepyouactivehasbeenprovedwrongbytheresearch,whichshowsthatt
Thesedays,manylargecitybuildingsareequippedwiththeirownair-conditioningsystems.Thesesystemshelpkeepthebuilding
A、Themanisfondoftraveling.B、Thewomanisaphotographer.C、Thewomantookalotofpicturesatthecontest.D、Themanadmi
Wereyouthefirstorthelastchildinyourfamily?Orwereyouamiddleoranonlychild?Somepeoplethinkit【B1】______where
Wereyouthefirstorthelastchildinyourfamily?Orwereyouamiddleoranonlychild?Somepeoplethinkit【B1】______where
随机试题
王某设立个人独资企业后,因业务发展需要在外地设立分支机构,则该分支机构的民事责任由()。
在尚未冷却的沥青混合料面层上,()停放任何机械设备或车辆,不得散落矿料,油料等杂物。
押品管理是指押品的受理、审查、评估、权利设立、监控、返还与处置等一系列活动。下列选项中,属于押品管理所应遵循的原则的有()。
某企业需借入资金120万元,由于银行要求将贷款数额的20%作为补偿性余额,故企业需向银行申请的贷款数额为()。
根据我国刑事诉讼法的规定,能够直接受理刑事案件的机关:()
行政法律关系中最主要的是行政机关与公务员之间的权利义务关系。()
在某次数学竞赛中,有单选题20道,每题1分,有20分的基础分,答对一题得3分,不答得1分,答错一题扣1分,若有2000人参加竞赛,则至少有()人得分相同。
执法人员当场作出行政处罚决定的,应当向当事人出示执法身份证件,填写预定格式、编有号码的行政处罚决定书。行政处罚决定书应当当场交付当事人。()
Digitaldivideissomething______.
Internationalairlineshaverediscoveredthebusinesstravelers,themanorwomanwhoregularlyjetsfromcountrytocountryas
最新回复
(
0
)