首页
登录
职称英语
Throughout history man has had to accept the fact that all living things must
Throughout history man has had to accept the fact that all living things must
游客
2025-04-27
15
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【51】Yet, all living things still show the【52】of aging, which will eventually【53】death.
Aging is not a disease, but as a person passes maturity, the cells of the body and the【54】they form do not function【55】they did in childhood and adolescence. The body provides less【56】against disease mad is more【57】accident.
A number of related causes may【58】aging. Some cells of the body have a fairly long life, but they are not【59】when they, die. As a person ages,【60】of brain cells and muscle cells decreases.【61】body cells die and are replaced by new cells. In an aging person the【62】cells may not be as viable or as【63】growth as those of a young person.
Another【64】in aging may be changes within the cells【65】Some of the protein chemicals in cells are known【66】with age and become less elastic. This is why the skin of old people【67】and hangs loose. This is also the reason old people【68】in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and【69】information that the cells need. Aging may affect this【70】and change the information-carrying molecules so that they do not transmit the information as well. [br]
选项
A、brains
B、brain
C、heart
D、organs
答案
D
解析
the organs they form它们所组成的器官。
转载请注明原文地址:https://tihaiku.com/zcyy/4056631.html
相关试题推荐
Thisprogramwilltakekidswhohaveamanifesthistoryofviolentacts.A、determ
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
随机试题
AtleastsincetheIndustrialRevolution,genderroleshavebeeninastate
Communicationinaforeignlanguagemustinvolvebothteachersandpupilsu
CourageSomeoftheworld’soldestandbeststoriesareaboutcourage.Theya
下列句子中有用词错误的是( )。A.这件事,几十年来我一直耿耿于怀,生怕有负周
男性,34岁,上厕所时向后摔倒,枕部着地,昏迷40分钟。醒后对伤情记忆不清,呕吐
SEAQ系统的特点有( )。 ①每只股票至少需要1个做市商 ②每只股票至少
人类发育过程中,骨髓造血始于A:第二周B:第六周C:第三个月D:第八个月
在对火灾自动报警系统工程质量进行验收时,下列情形中,可判定为A类不合格的是(
下列建设项目中,仅从项目类型上考虑,最适宜采用政府和社会资本合作(PPP)模式建
以下情况,应列入风险管理内容的是( )。A.地压不清井下含水层可能突水 B.
最新回复
(
0
)