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
23
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.
【C5】
选项
A、do
B、has done
C、did
D、were doing
答案
C
解析
转载请注明原文地址:https://jikaoti.com/ti/zAWFFFFM
0
大学英语四级
相关试题推荐
Thepurposeofimprovingtheeducationqualityistocreateanenvironmentinwhichpeoplemayachievefurthersuccess.Toprov
Thereis______(毫无疑问)thatuniversitiesaregoingtoimplementthenewcurriculumthissemester.
WhenmenreturnedfromWorldWarIIandthepostwar"babyboom"began,Americansbegantomoveingreatnumberstothe【B1】______
A、Whentherearemorethantwelvepeople.B、Whentherearefivepeople.C、Whentherearefifteenpeople.D、Whentherearemoret
A、Astudygroup.B、Ahistoryexam.C、Theman’spainting.D、Aprofessionalartist.C综合推断题,结合听力材料可知,对话一直围绕男士的画作展开,所以C正确
A、Dentistandpatient,B、Schoolmates.C、Roommates.D、Workmates.B综合推断题,男士说She(Denise)’satschoolwithme,atschool意为“在学校,在求学”
Togetachocolateoutofaboxrequiresaconsiderableamountofunpacking:theboxhastobetakenoutofthepaperbaginwhi
Ifthereisanysinglefactorthatmakesforsuccessinliving,itistheabilitytoprofitbydefeat.EverysuccessIknowhas
A、TheItaly.B、TheBritish.C、TheArabian.D、TheAmerican.C从题目选项可以得知,该题考查哪国人如何的信息。可以从“IntheMiddleEast,directeyecontactdu
随机试题
简述多国本土化战略的实施条件。
StudentscantravelintheUnitedStateswithoutspendingtoomuchmoneyiftheyfollowthesesuggestions.Atravelagentca
甲股份有限公司经董事会决议,变更公司章程,在其营业范围中增加“制售成衣”一项,但尚未向工商行政部门办理变更登记手续。董事长刘某未经授权与乙纺织厂签订一项订购布料的合同,并代表公司签发以某银行为付款人、乙为收款人的汇票一张给乙,作为定金。乙因欠丙货款,将该票
(2007年)如图5—20所示,圆轴的扭矩图为()。
冶金冷轧工程界定为中型工程的生产能力是()。
背景资料:某工业安装项目通过招标,建设单位与土建施工单位和设备安装单位分别签订了施工合同。设备安装时,监理工程师发现土建单位施工的某设备基础预埋地脚螺栓位置与设备底座相应的尺寸不符,设备安装单位无法将设备安装就位,造成设备安装单位工期延误和费用损失。经调
如何对教师授课质量进行评价?
在思维活动中,善于严格的分析思维材料并精细地检查思维过程的一种思维品质是思维的哪种特性?()
PsychologistGeorgeSpilichandcolleaguesatWashingtonCollegeinChestertown,Maryland,decidedtofindoutwhether,asmany
Streetfoodisfoodthatisprepared,soldandeatenoncitystreets.Streetfoodisanimportantpartofthe【C1】______ofpeople
最新回复
(
0
)