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
A Biological Clock Every living thing has what scientists call a biological clock that controls behavior. The biological clo
A Biological Clock Every living thing has what scientists call a biological clock that controls behavior. The biological clo
admin
2016-07-17
29
问题
A Biological Clock
Every living thing has what scientists call a biological clock that controls behavior. The biological clock tells【C1】______when to form flowers and when the flowers should open. It tells【C2】______when to leave the protective cocoons and fly away, and it tells animals and human beings when to eat, sleep and wake.
Events outside the plant and anima【C3】______the actions of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur【C4】______ the number of hours of daylight. In the short【C5】______of winter, its fur becomes white. The fur becomes gray brown in color in the longer hours of daylight in summer.
Inner signals control other biological clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration【C6】______twice each year. Birds【C7】______flying become restless when it is time for the trip,【C8】______they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which【C9】______of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain【C10】______to control the timing of some of our actions. These【C11】______tell a person when to【C12】______, when to sleep and when to seek food. Scientists say there probably are other biological clock cells that control other body activities.
Dr. Moorhead is studying【C13】______our biological clocks affect the way we do our work. For example, most of us have great difficulty if we must often change to different work hours.
【C14】______can take many days for a human body to accept the major change in work hours. Dr. Moorhead said industrial officials should have a better understanding of biological clocks and how they affect workers. He said【C15】______understanding could cut sickness and accidents at work and would help increase a factory’s production.
【C15】
选项
A、if
B、such
C、with
D、so
答案
B
解析
该句中的understanding既然是上句中提到的better understanding,C便是最佳的选项。其他三个选项均不符合语法。
转载请注明原文地址:https://kaotiyun.com/show/QLhd777K
本试题收录于:
职称英语卫生类A级题库职称英语分类
0
职称英语卫生类A级
职称英语
相关试题推荐
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
Accordingtothepassage,oneofthereasonswhynewbornsinmountaincommunitiesareunderweightisthattheirmothersareunde
AchangesofNewspapersBservicebyNewspapersCsaleplaceofNewspapersDpopularityofNewspapersETrendofNewspapers
AnAwfulAfternoonSometimesIfeelthatbeingthemotherofthreesmallchildrenislikerunningalargecircus(马戏团).Oneaf
AnimalIntelligenceAreAnimalsintelligent?Iftheyare,whichanimalsarethemostintelligent?Thesearenoteasyquestion
A.Morrison’sSurveyandFindingsB.CommentsonCurrentGuidelinesC.TheRelationofSexuallyTransmittedDiseasestoIUDComp
EatforaGoodandHealthfulLifeFood(1)usalive.Itisoursustenanceandourpleasure.Butrecently,researchhasshownthat
EatforaGoodandHealthfulLifeFood(1)usalive.Itisoursustenanceandourpleasure.Butrecently,researchhasshownthat
Marycalledmeupverylatelastnight.
"Iamnotmeddling."Marysaidmildly,"I’mjustcurious."
随机试题
蛋白质互补作用
烽源有限公司的章程规定,金额超过10万元的合同由董事会批准。蔡某是烽源公司的总经理。因公司业务需要车辆,蔡某便将自己的轿车租给烽源公司,并约定年租金15万元。后蔡某要求公司支付租金,股东们获知此事,一致认为租金太高,不同意支付。关于本案,下列哪一选项是正确
间歇式反应器出料组成与反应器内物料的最终组成()。
环境描写包括__描写与__描写。
A.冠状动脉粥样硬化性心脏病B.扩张型心肌病C.特异性心肌病D.高血压性心脏病E.肥厚型心肌病患者女性,58岁,发现血压高12年,血压最高200/100mmHg,间断服用降压药物,体格检查心界不大,超声心动图检查显示左室壁厚度为13mm
A.ISELB.IDEALC.BR21D.INTACTE.HERA进行ZD1839和安慰剂对照研究的
下列物质使溴水褪色的是()。[2012年真题]
乙公司是一家生产中档汽车的企业。在下列表述中,A公司的主要直接竞争对手是()。
某日晚11时,李某结束为期一周的出差回家,走到家门口发现家门大开。面对这种情况,李某下列做法错误的是()。
民间文化同以官方为代表的正统文化和以知识分子为代表的精英文化,并非_______的。举例来说,它像无垠无际的沃土,_______着正统文化和精英文化,而衰落了的正统文化和精英文化又如枯枝败叶一样,流落于民间,丰厚了它的土层。
最新回复
(
0
)