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
Throughout history man has had to accept the fact that all living things must die, but people now live longer than they 【C1】____
Throughout history man has had to accept the fact that all living things must die, but people now live longer than they 【C1】____
admin
2010-04-12
52
问题
Throughout history man has had to accept the fact that all living things must die, but people now live longer than they 【C1】______. Yet, all living things still show the【C2】______of aging, which will eventually【C3】______death.
Aging is not a disease, but as a person passes maturity, the cells of the body and the【C4】______they form do not function as well as they【C5】______in childhood and adolescence (青春期), The body provides less【C6】______against disease and is more inclined【C7】______accident.
A number of related causes may【C8】______aging. Some cells of the body have a fairly long life, but they are not【C9】______when they die. As a person ages,【C10】______of brain cells and muscle cells decreases.【C11】______body cells die and are replaced by new cells. In an aging person the【C12】______cells may not be as viable (能生存的)or as capable【C13】______growth as those of a young person.
Another【C14】______in aging may be changes within the cells【C15】______. Some of the protein chemicals in cells are known【C16】______with age and become less elastic. This is why the skin of the old people wrinkles and【C17】______. This is also the reason old people【C18】______in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and【C19】______information that the cells need. Aging may affect this【C20】______and change the information-carrying molecules so that they do not transmit the information as well.
【C19】
选项
A、pass to
B、pass on to
C、pass from
D、pass on
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/G8j7777K
0
大学英语四级
相关试题推荐
A、Becausetheylackpractice.B、Becausetheylackthegovernmentconcernofthismatter.C、BecausetheyarereluctanttouseEng
Thepurposeofimprovingtheeducationqualityistocreateanenvironmentinwhichpeoplemayachievefurthersuccess.Enjoyin
A、It’sfarfromtheacademicbuildings.B、Nobusesgotoit.C、Therearefewfirst-yearstudentslivingthere.D、It’solderthan
Home.FewwordsintheEnglishlanguagehavesuchaspecialmeaning.Homeisaplacewhereyoucanrelax,kickbackandjustbe
Themodernageisanageofelectricity.Peopleareso【S1】______toelectriclights,radio,televisions,andtelephonesthatit
Themodernageisanageofelectricity.Peopleareso【S1】______toelectriclights,radio,televisions,andtelephonesthatit
A、Ithashelpedrelievehungerinsomedevelopingcountries.B、Ithasimprovedanimalbreedingskillsallovertheworld.C、Ith
Exerciseisoneofthefewfactorswithapositiveroleinlongtermmaintenanceofbodyweight.Unfortunately,thatmessagehas
Onlyspecialplantscansurvivetheterribleclimateofadesert,fortheseareregionswheretheannualrangeofthesoiltempe
Vegetablegardeningistherelaxingartandscienceofturningaloveforgrowingplantsintoaproductiveactivity.Manyth
随机试题
A低渗性脱水B等渗性脱水C高渗性脱水D低钠血症E高钠血症腹泻后只饮水会出现
标志着自由放任经济理论破产和“守夜人”政府终结的事件是()
关于两种可变要素的合理投入区,下列描述正确的有
釉柱晶体形态为
下列哪项容易引起泌尿系感染
牙髓组织对外界刺激的反应是
下列哪项不是内伤头痛的特征()
建设项目经济评价的计算期是指()。
图14—3—1所示结构,EI=常数,结点C的弹性支撑刚度系数k=3EI/L3,B点得竖向位移为()。[2012年真题]
Englishistheleadinginternationallanguage.Indifferentcountriesaroundtheglobe,Englishisacquiredasthemothertongue
最新回复
(
0
)