首页
登录
职称英语
Throughout history man has had to accept the fact that all living things mus
Throughout history man has had to accept the fact that all living things mus
游客
2023-07-25
43
管理
问题
Throughout history man has had to accept the fact that all living things must die, hut people now live longer than they used to. Yet, all【C1】______things still show the effect of aging, which will eventually【C2】______death. The body and the【C3】______, they do not function as well as they【C4】______in childhood and adolescence(青春期). The body provides less【C5】______against disease and is more prone(易于……的)【C6】______accident.
A number of related causes may【C7】______to aging. Some cells of the body have a【C8】______long life, but they are not【C9】______when they die. As a person ages,【C10】______of brain cells and muscle cells decreases. Other body cells did and are replaced by new cells. In an aging person the【C11】______cells may not be as viable(能生存的)or as capable【C12】______growth as those of a young person.
Another factor in aging may be changes within the cells【C13】______Some of the protein chemicals in cells【C14】______known to change【C15】______age and become less elastic. This is why the skin of old people wrinkles and hangs loose. This is also the reason old people shrink in【C19】______. There may be other more important chemical changes in the cells. Some complex cell chemicals.【C17】______DNA and RNA, store and【C18】______information that the cells need. Aging may【C19】______this process and change the information carrying molecules【C20】______they do not transmit the information as well. [br] 【C5】
选项
A、prevention
B、protection
C、strength
D、vitamin
答案
B
解析
protection n.保护,防护物;prevention n.预防,阻止;vitamin n.维少素。既然前面用provide(提供)动词,所以只有protection与之搭配。
转载请注明原文地址:https://tihaiku.com/zcyy/2866845.html
相关试题推荐
Tobe"historicallyminded"istoseethingsinrelationandinperspective,
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthe
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthe
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthe
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthe
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthe
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthe
Astudyofarthistorymightbeagoodwaytolearnmoreaboutaculturetha
Astudyofarthistorymightbeagoodwaytolearnmoreaboutaculturetha
Astudyofarthistorymightbeagoodwaytolearnmoreaboutaculturetha
随机试题
[originaltext]Iamwritingtothankyoufortheinterestingreportswhicha
Foralongtimewehaveworkedhardatisolatingtheindividualfamily.This
景德镇,原名昌南,位于江西省境内。景德镇历史悠久,是中国历史上的四大名镇之一。景德镇因其瓷器(chinaware)的生产而闻名,据记载,其瓷器生产可以追
中枢神经系统白血病的诊断标准是A.脑脊液中蛋白总量>50mg/L,潘氏试验阳性
用油镜观察到颗粒型荧光核型,表示自身免疫病(AID)患者血清中含有以下抗核抗体A
计算基础代谢率(BMP)的公式正确的是A.BMR=脉率+收缩压-111 B.B
按测验的目的分类可分为诊断性测验、终结性测验和( )。 A.形成性测
什么是多动症?多动症幼儿行为的基本特征有哪些?
翻译工作,是一种成果供他人消费的智力劳动,作为劳动者的翻译工作者必须同一切劳动者
按照《建设项目水资源论证管理办法》的规定,从()起,凡是直接从江河、湖泊或地下
最新回复
(
0
)