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
2023-07-28
43
管理
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. [br] 【C7】
选项
A、to
B、for
C、against
D、in
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2875446.html
相关试题推荐
Themotorvehiclehaskilledanddisabledmorepeopleinitsbriefhistoryt
Themotorvehiclehaskilledanddisabledmorepeopleinitsbriefhistoryt
Themotorvehiclehaskilledanddisabledmorepeopleinitsbriefhistoryt
Themotorvehiclehaskilledanddisabledmorepeopleinitsbriefhistoryt
Themotorvehiclehaskilledanddisabledmorepeopleinitsbriefhistoryt
[originaltext]M:Youlookhappy.Didyouselllotsofthingsatthestoretoday
[originaltext]M:Youlookhappy.Didyouselllotsofthingsatthestoretoday
Thestandardoflivingofanycountrymeanstheaverageperson’sshareofth
Thestandardoflivingofanycountrymeanstheaverageperson’sshareofth
Thestandardoflivingofanycountrymeanstheaverageperson’sshareofth
随机试题
Ofthethousandsofdifferentkindsofanimalsthatexistintheworldmanha
Itcanbeshowninfactsandfigurethatcyclingisthecheapest,most
[img]2014m3x/ct_eyyjscz2013c_eyyjscd_0021_20138[/img]Ifyou【D1】______smooth
NewEducationalTechnology:ChallengesandPotentialManycr
影响出版物市场的因素不包括( )。A.作者分布区域因素 B.社会文化因素
下述哪一类肿瘤不属于原发性恶性骨肿瘤A.脊索瘤 B.骨纤维肉瘤 C.尤文瘤
强调数据处理能力是高中数学课程的一个变化,有人说统计的概念不难掌握,请谈谈在
建设工程项目实施阶段策划的内容包括()。A、项目实施的组织策划 B、项目实施的
负责注册测绘师资格注册审查工作的部门是()。A.省级测绘行政主管部门 B.
专用记账凭证,一般适用于企业规模较小、经济业务不多的单位。()
最新回复
(
0
)