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 used to
Throughout history, man has had to accept the fact that all living things must die, but people now live longer than they used to
admin
2013-06-17
62
问题
Throughout history, man has had to accept the fact that all living things must die, but people now live longer than they used to. Yet, all【C1】______things still show the effect of aging, which will eventually【C2】______death. The body and the【C3】______, they do not function as well as they【C4】______in childhood and adolescence(青春期). The body provides less【C5】______against disease and is more prone(易于……的)【C6】______accident.
A number of related causes may【C7】______to aging. Some cells of the body have a【C8】______long life, but they are not【C9】______when they die. As a person ages,【C10】______of brain cells and muscle cells decreases. Other body cells did and are replaced by new cells. In an aging person the【C11】______cells may not be as viable(能生存的)or as capable【C12】______growth as those of a young person.
Another factor in aging may be changes within the cells【C13】______. Some of the protein chemicals in cells【C14】______known to change【C15】______age and become less elastic. This is why the skin of old people wrinkles and hangs loose. This is also the reason old people shrink in【C16】______. There may be other more important chemical changes in the cells. Some complex cell chemicals.【C17】______DNA and RNA, store and【C18】______information that the cells need. Aging may【C19】______this process and change the information carrying molecules【C20】______they do not transmit the information as well.
【C12】
选项
A、of
B、to
C、with
D、for
答案
A
解析
be capable of +n能够干某事,为一固定结构,be able to do sth.中用动词不定式。
转载请注明原文地址:https://kaotiyun.com/show/L907777K
0
大学英语四级
相关试题推荐
【B1】【B11】
Manyofusstilltendtoregardemotionsasinterferingwithrationalthought,andsometimeslandingusintrouble.Butinrecen
A、OxfordStreet.B、BuckinghamPalace.C、TrafalgarSquare.D、King’sCross.B信息明示题。男士让女士到白金汉宫时提醒自己,由此可知,男士要去白金汉宫,所以B正确。
Ithappenstoeverymedicalstudentsoonerorlater.Yougetacoughthatpersistsforawhile.Ordinarily,you,wouldjustigno
Ithappenstoeverymedicalstudentsoonerorlater.Yougetacoughthatpersistsforawhile.Ordinarily,you,wouldjustigno
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudents.Ifalongreadingassignmentisgiven,instr
A、arestaurant.B、abar.C、alibrary.D、aclassroom.A此题考查从内容推测的能力。解题关键在于听到“thatwasagreatdinner,Iamreallyfull,”以及“should
Oneofthefourpoliceofficersinjuredintheexplosionhasbeen______fromhospital.
Oneday,drought(干旱)maybeathingofthepastatleastincoastalcities.Vastareasofdesertthroughouttheworldmayforthe
Whydoestheauthorcongratulatehismalereadersatthebeginningofthepassage?Whatdoestheauthorstateisthemostimpor
随机试题
影响产业购买者购买决策的主要因素有环境因素、组织因素、人际因素和()因素。
患者,男,26岁。无外伤史,昨晚睡觉时由于姿势不正,今晨起床后发现颈部歪斜,遂去医院就诊,导诊给予挂骨科号。查体:颈部活动受限,不能平卧。该患者首先考虑的诊断是
阿托品对哪种平滑肌的解痉作用最明显
去甲肾上腺素兴奋心脏β1受体,但在整体动物,又使心率减慢,其原因是
房地产经纪业务按照经纪服务方式,分为()。
有防水要求的建筑地面工程,铺设前必须对()进行密封处理。
企业确定转移价格政策采用双重定价做法的优点之一是:
三个效度量表L量表分很高、F量表则相当低为()。
(1997年)在某一人群中推广新技术是通过其中已掌握新技术的人进行的.设该人群总数为N,在t=0时刻已掌握新技术的人数为x0在任一时刻t已掌握新技术的人数为x(t)(将x(t)视为连续可微变量),其变化率与已掌握新技术人数和未掌握新技术人数之积成正比,比例
Notlongbefore,somemunicipalgovernmentsissuedanewregulationonthemanagementoflostitems.Itgoeslikethis:ifnoon
最新回复
(
0
)