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
36
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.
【C11】
选项
A、The
B、The other
C、Old
D、Other
答案
D
解析
转载请注明原文地址:https://jikaoti.com/ti/nAWFFFFM
0
大学英语四级
相关试题推荐
Evenifgovernmentshaveestablishedregulationsonscientificandtechnologicaldevelopment,itsfurtheradvancement______(仍然可能
A、Calltheoffice.B、signyournameonthenoticeboardinadvance.C、Paythemoney.D、Thereisnoneedtoreserveaplace.B信息明
A、Hisadvisor.B、Hispartner.C、Hiscustomer.D、Hisboss.D
Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.Themeaningsofthousandsofeverydayperceptions’,thebasis
ScientistsWeighOptionsforRebuildingNewOrleansAsexpertsponderhowbesttorebuildthedevastated(毁坏)city,onequesti
Themodernageisanageofelectricity.Peopleareso【S1】______toelectriclights,radio,televisions,andtelephonesthatit
Singaporeiswellknownasamulti-racial,multi-culturalandmulti-religiousnation.Andthis【C1】______isgraduallybecoming
RobertSpring,a19thcenturyforger(伪造者),wassogoodathisprofessionthathewasabletomakehislivingfor15yearsbyse
A、Theundergroundoilresourceshavenotbeenaffected.B、Mostofthedesertanimalsandplantshavemanagedtosurvive.C、Theo
A、Sheshouldwearsomethingdressy.B、It’sacocktailparty.C、It’saninformalparty.D、Sheshouldn’twearpants.C
随机试题
五行中木的特性,古人形容概括为:()
A、细胞毒素类;B、抗代谢类;C、抗生素类;D、植物类;E、激素类5-Fu属
孕妇感染后病死率高的病毒是
根尖脓肿与骨膜下脓肿鉴别点是
患儿,1岁。发热1天,全身见散在细小淡红色皮疹,喷嚏,流涕,偶有咳嗽,精神不振,胃纳欠佳,耳后骨核肿大,咽红,舌苔薄白。其诊断是()
不属于慢性胰腺炎四联症的是
承包方提出的索赔事件的成立条件是()。
如果有时间,我()。
有关工业产品的安全、卫生要求的地方标准,在本行政区域内是强制性标准。()
2009年中央“一号文件”在民生事业的建设方面强调了五个重点,下面哪项不是重点方面?()
最新回复
(
0
)