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
16
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、a number
B、an amount
C、tile number
D、most
答案
C
解析
句意:随着年龄的增长,脑细胞和肌肉细胞的数量在减少。
转载请注明原文地址:http://tihaiku.com/zcyy/4056637.html
相关试题推荐
Theracialinterpretationofhistoryandthefascistcontemptfordemocracylure
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmust
随机试题
Althoughthefalsebanknotesfooledmanypeople,theydidnot________tocloseex
Readthefollowingtext.Choosethebest
为能确保劳务合同的顺利履行以及工程质量达到合同约定的规定标准,对劳务分包人或劳务
在视觉的形成过程中,图像和视觉的形成部位分别是( )。A.视网膜、视网膜 B
大洋钻探:揭示地球环境的历史档案为了解自己生存环境的变化,人类对地球的视野不但
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
肱骨中下1/3骨折,最易发生的并发症是 A.肱动脉损伤B.尺神经损伤 C.
发审委委员有下列()情形之一的,中国证监会应当予以解聘。A:违反法律、行政法规、
A.破血消癥,通经 B.活血止痛,消肿生肌 C.破血行气,消积止痛 D.散
施工现场进行一级动火作业前,应由()审批。A、安全监理工程师B、企业安全管理部
最新回复
(
0
)