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
It has been known since ancient times that certain plants regularly open their leaves in daytime and close them at night. It was
It has been known since ancient times that certain plants regularly open their leaves in daytime and close them at night. It was
admin
2010-02-26
90
问题
It has been known since ancient times that certain plants regularly open
their leaves in daytime and close them at night. It was assumed which this 【S1】______.
periodic change was triggered by the alternating sunlight and darkness. Such
leaves stick to their daily routine even when keeping in constant darkness. 【S2】______.
What is circadian rhythm? Many biological processes follow a 24-hours 【S3】______.
schedule. These cycles are called circadian rhythms. These innate rhythms are
governed by sophisticated chemical mechanisms can be described as biological 【S4】______.
clocks. Such rhythms are important for humans too! We sleep through most
of the hours of darkness and are awaken through most of the hours of 【S5】______.
daylight. Body temperature increases during the day and decreases during the
night. The secretion of various hormones that controls life’s processes rises 【S6】______.
and falls to a circadian rhythm.
How does this relate to health? Circadian rhythms are important for
desirable functioning of the processes vital to health. This is most effectively
illustrated and the normal circadian rhythms are disrupted by lack of sleep or by 【S7】______.
crossing time zones. It may take days or even hours for all the bodies circadian 【S8】______.
rhythms to read just appropriately. The turmoil (混乱) that results from the
readjustment process when time zones are crossed experienced as the 【S9】______.
phenomenon of jet lag. This is also experienced by people who do shift work
Understanding circadian rhythms may be irrelevant to the understanding and 【S10】______.
treatment of disease. Therapy can be more effective and toxic effects reduced
when drugs are administered at carefully selected times of the day.
【S6】
选项
答案
controls→control
解析
表示状态。
转载请注明原文地址:https://kaotiyun.com/show/sOdK777K
0
大学英语六级
相关试题推荐
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotiontoindividualism:"Doyourownthing.""Ididitmywa
Accordingtothepassage,properarrangementofphysicalenvironmentinacompany______.Themostimportantgoalofclassroom
A、Water.B、Crops.C、Money.D、Trees.BWhichofthefollowingisthemainsourceofconflictbetweentheelephantsandthelocalp
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusingexistingtechnology.Fourrecenteventsshouldb
A、He’llprobablytalkaboutChapter16inclasstoday.B、He’llprobablypostponethetestuntilhetalksChapter16.C、Hemight
Dependingonwhatyouarelookingfor,youhavetojudgeforyourself__________________(这些资料对你来说有多大的相关性).
______(为了最大限度减少窃案发生的可能性),theyinstallagoodalarmsystem.
A、Heremembersthathedoesnothavethevideoinhisoffice.B、HerealizesthatthewomandoesnothaveaVCR.C、Heisworried
Accordingtothepassage,asafamousscientist,Newtonhave______theories.______theoryisusedfrequentlytointerpretlig
A、Thenextday.B、OnSaturday.C、Inthreedays.D、Inoneweek,BWhenishersister’sbirthday?信息明示题。女士询问包裹能否在自己妹妹过生日那天,也就是周六寄到,
随机试题
在计算机内,多媒体数据最终是以()形式存在的。
妇科腔内放射治疗曼彻斯特系统A点位于侧穹隆上方多少和子宫中轴旁开多少的交点处
甲、乙企业达成一项非专利技术转让协议,约定甲向乙转让一种配方,乙不得将配方告知他人。乙获得配方后,违反保密协议,将配方允许联营企业丙使用,丙为了牟利,将配方多次转让,导致配方在社会上公开,甲企业蒙受重大损失,则_________。
甲、乙、丙、丁共同出资设立日升有限公司,出资比例分别为50%、30%、10%、10%。公司成立后因经营理念发生冲突,乙拟向戊转让其全部股权,甲不同意,丙、丁同意。2018年5月1日,乙书面通知甲、丙、丁转让条件并要求5月20日前答复是否行使优先购买权,丙、
民事法律关系的客体是民事权利和民事义务共同指向的对象。在货物运输合同关系中,其客体指()。
根据工程特点,发包方除工程造价款以外另行支付工期奖、质量奖、措施奖及索赔等款项时,要依据双方协议、合同等文件在约定期限内随同( )同时收取。
背景某写字楼地上6层,层高3.6m,幕墙面积4580m2,现浇混凝土框架结构。内墙墙面乳胶漆。外立面装修采用单元式隐框玻璃幕墙,槽型预埋件,在结构边梁的梁顶以及梁底预埋。幕墙单元板块在公司生产车间组装,加工完成后运至施工现场安装;幕墙全部采用吸热
小高平时安静沉稳,喜欢沉思,考虑事情全面,情绪不易外露,善于忍耐,克制自己,但是反应慢,新环境适应能力差,小高气质类型最可能属于哪种?()
在幼儿活动室窗台放几盆仙人球,既可以防电磁辐射,又可以供幼儿观察认识欣赏。()
请从所给的四个选项中,选出最符合左边四个图形一致性规律的选项()
最新回复
(
0
)