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
专升本
Throughout history man has had to accept the fact that all living things must die, but people now live longer than they【36】. Yet
Throughout history man has had to accept the fact that all living things must die, but people now live longer than they【36】. Yet
admin
2011-04-26
56
问题
Throughout history man has had to accept the fact that all living things must die, but people now live longer than they【36】. Yet, all living things still show the【37】of aging, which will eventually.【38】death.
Aging is not a disease, but as a person passes maturity, the cells of the body and the【39】they form do not function as well as they【40】in childhood and adolescence (青春期). The body provides less【41】against disease and is more prone【42】accident.
A number of related cause may【43】aging. Some cells of the body have a fairly long life, but they are not【44】when they die. As a person ages,【45】of brain cells and muscle cells decrease,【46】body cells die and are replaced by new cells. In an aging person the【47】cells may not be as viable (能生存的) or as capable【48】growth as those of a young person.
Another【49】in aging may be changes within the cells【50】. Some of the protein chemicals in cells are known【51】with age and become less elastic. This is why the skin of old people wrinkles and【52】. This is also the reason old people【53】in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as RNA, store and【54】information that the cell need. Aging may affect this【55】and change the information carrying molecules so that they do not transmit the information as well.
选项
A、replaced
B、reborn
C、recovered
D、yielded
答案
A
解析
replaced意为“替代”,该句意为:“某些细胞一旦死亡就再也没有了。”
转载请注明原文地址:https://kaotiyun.com/show/M8qC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Mostpeople______.Weliveinaright-handedworld.Itmeans______.
Mostpeople______.Monkeys______.
It’struethattheoldroadislessdirectandabitlonger.Wewon’ttakethenewone.______,becausewedon’tfeelassafeon
Hehadtriedeverythingbutitmadelittle______.
Manypeoplefindhomegardening______.Whichofthefollowingstatementsistrue?
Accordingtotheauthor,reallygoodscience______.Whatistheauthor’sattitudetowardsscience?
Ithasbeenoftensaidbypeopleinvolvedinlanguageteachingthatastudentwhoreallywantstolearnwillsucceedwhateverth
It’sabouttimeyou______alittlelessmoney.
IntheUnitedStates,teachingisveryimportant.Ifteachersdonotteachwell,studentscomplain.Ifmanystudentsdonotunde
随机试题
确立多边投资担保制度的公约是()
胸部损伤后能导致急性循环衰竭的是下列哪项
确定起重机能够吊装的载荷,其依据不包括起重机的()。
出口口岸()贸易方式()
下列著名古诗是描写杭州西湖美景的有()。
山:山脉
设L:y=sinx(0≤x≤π/2),由x=0,L及y=sint围成面积S1(t);由y=sint,L及x=π/2围成面积S2(t),其中0≤t≤π/2.t取何值时,S(t)=S1(t)+S2(t)取最小值?t取何值时,S(t)=S1(t)+S2(t)取最
函数f(x)=e—xsinx(x∈[0,+∞))的值域区间为________.
下列关于进程间通信的叙述中,不正确的是______。
A、Europe.B、Brazil.C、Russia.D、TheUnitedStates.A根据录音,美国、俄罗斯、巴西等国家都会遭受油价下跌带来的负面影响,而欧洲是油价下跌的获益方,因此A)正确。
最新回复
(
0
)