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
As people continue to grow and age, our body systems continue to change. At a certain point in your life, your body system began
As people continue to grow and age, our body systems continue to change. At a certain point in your life, your body system began
admin
2015-09-25
20
问题
As people continue to grow and age, our body systems continue to change. At a certain point in your life, your body system began to weaken. Your joint may become stiff. It may become more difficult for you to see and hear. The slow change of aging causes our bodies to lose some of their ability to bounce back from disease and injury. In order to live longer, we have always tried to slow or stop this process that leads us toward the end of our lives.
Many factors contribute to your health. A well-balanced diet plays an important role. The amount and type of exercises you get is another factor. Your living environment and the amount of stress you are under is yet another. But scientists studying senescence want to know: Why do people grow old? They hope that by examining the aging process on a cellular level medical science may be able to extend the length of life.
There is nothing to be afraid of as old age approaches. Many consider the later portions of life to be the best time for living. Physical activity may lessen, but often you gain a broader understanding of yourself and the world.
What we consider old age now may only be middle-aged someday soon. Who knows with so many advances in medical science happening so quickly, life spans may one day be measured in centuries, rather than in years!
Why are some scientists interested in studying senescence?
选项
A、They may be able to find better ways to our life.
B、If they pin down the biochemical process that makes us age, there will be hope for extending the length of life.
C、They want find out if there is a link between how efficiently a cell could repair itself and how long a creature lives.
D、They want to increase the general ability of our bodies.
答案
B
解析
事实细节题。文章第二段段末提及了科学家对研究衰老感兴趣的原因: “They hope that byexamining the aging process on a cellular level medical science may be able to extend the length of life.”选项B与文章信息一致。故答案为B。
转载请注明原文地址:https://kaotiyun.com/show/LpLO777K
0
考博英语
相关试题推荐
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirthagainstmanyofthemostdangerousd
Forthepastseveralyears,theSundaynewspapersupplementParadehasfeaturedacolumncalled"AskMarilyn".Peopleareinvite
Opinionpollsarenowbeginningtoshowanunwillinggeneralagreementthat,whoeveristo【21】andwhateverhappensfromnowon,
Opinionpollsarenowbeginningtoshowanunwillinggeneralagreementthat,whoeveristo【21】andwhateverhappensfromnowon,
Inspiteof"endlesstalkofdifference",Americansocietyisanamazingmachineforhomogenizingpeople.Thereis"thedemocrat
Englishremainsadominantanduniversallanguage,whichpresently【51】asaconnection-linkbetweengreatvarietiesofdif
______studentsshouldbemotivatedbyakeeninterestintheatreandshouldhavesomefamiliaritywithplaysinproduction.
Theobjectiveofthispopularconsultationistodetermine,______,thefinalpoliticalstatusoftheregion,whethertoremaino
Couldamechanicaldeviceever______humanintelligence-theultimatetestbeingwhetheritcouldcausearealhumantofallin
Iboughtanalarmclockwitha(n)______dialwhichcanbeseenclearlyinthedark.
随机试题
患者男性,40岁。慢性乙型肝炎病史2年,时有右胁部隐痛不适,3天前饮酒后右胁肋部胀痛,口苦口黏。小便黄赤,大便不爽,舌红,苔黄腻,脉弦滑数。治宜选用
缓解支气管痉挛的药物中,其作用机制为兴奋β2。肾上腺素受体的是
背景资料:某污水厂扩建工程,由原水管线、格栅间、提升泵房、沉砂池、初沉池等组成,承包单位以2250万元中标。原水管线基底标高为-6.00m(地面标高为±0.00),基底处于砂砾层内,且北邻S河,地下水位标高为-3.00m。 项目部组建后,经测算,该工
下列承包商向业主提出的施工机械使用费的索赔中,工程师不予支持的是()。
在人的发展过程中,具有”校外之校”影响作用的是()
开学不久,陈老师发现学生杨朗有许多毛病。陈老师心想,像杨朗这样的学生,缺少的不是批评,而是肯定和鼓励。一次,陈老师找他谈话说:“你有缺点,但你也有不少优点,可能你自己还没有发现。这样吧,我限你在两天内找到自己的优点,不然我可要批评你了。”第三天,杨明很
[2008年1月]P是以a为边长的正方形,P1是以P的四边中点为顶点的正方形,P2是以P1的四边中点为顶点的正方形,Pi是以Pi—1的四边中点为顶点的正方形,则P6的面积是()。
J.Martin指出,应该结合数据的战略规划进行必要的业务规划,并以企业模型图来表示,而其中以一个动词来命名的最低层被称为()。
若要使文本框能够输入多行文本,应该设置的属性是( )。
PASSAGETWOWhatisthemainargumentinPara.10?
最新回复
(
0
)