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
Population aging is a triumph of civilization. It is the【C1】______consequence of attaining desired smaller family sizes and long
Population aging is a triumph of civilization. It is the【C1】______consequence of attaining desired smaller family sizes and long
admin
2013-06-03
76
问题
Population aging is a triumph of civilization. It is the【C1】______consequence of attaining desired smaller family sizes and longer lives, with many living beyond 100 years. This achievement, 【C2】______requires vital social and economic adjustments【C3】______expected future demographic (人口的) realities. In particular, population aging raises critical issues【C4】______economic growth, employment and retirement, 【C5】______health care and social support services. As a population ages, the【C6】______of elderly increases, and that of children decreases. For much of the past, children outnumbered (超过) the elderly by a factor of more than six to one. Today the ratio has【C7】______to about three children per one older person. 【C8】______within the next few decades, perhaps by 2060, the world’s elderly population will begin to【C9】______the population of children, when each group is expected to【C10】______for slightly less than one-fifth of the world population. Developed countries have already moved well along this transformation. But a notable【C11】______is the comparatively young U.S. population, where the number of children is 50%【C12】______than those aged 65 and older.
Developing countries are now【C13】______a similar aging process, but【C14】______a much faster pace. Many developing countries that have experienced rapid fertility (人口出生率) are passing through this transition in a【C15】______of 25 years or less. As a(n) 【C16】______of such rapid changes, accommodating the necessary social and economic adjustments to older population age structures will likely be【C17】______more difficult for developing countries.
The wide【C18】______of consequence of population aging is of mounting【C19】______and significance for more developed countries — and are also【C20】______a worry for less developed countries.
【C15】
选项
A、extension
B、scale
C、rank
D、span
答案
D
解析
语义衔接题。结合语境,此处应该是说发展中国家经历这一转变需要25年左右,[D] span表示(某事物)自始至终的持续时间或期间,与空后的25yearsorless照应,故为答案。[A] extension“扩张延长的时间”;[B]scale“规模;范围”;[C]rank“等级;军衔”。
转载请注明原文地址:https://kaotiyun.com/show/P6M7777K
0
大学英语四级
相关试题推荐
Languagebarrierspresentavarietyofchallengesforchildrenofanyage.InHoustonalone,bilingualeducationprogramshaveh
Languagebarrierspresentavarietyofchallengesforchildrenofanyage.InHoustonalone,bilingualeducationprogramshaveh
Thetraditionalapproach______(处理复杂问题)istobreakthemdownintosmaller,moreeasilymanagedproblems.
Highereducationhasaresponsibilitytoprovideaworkforcewiththedesigncapabilityandhigh-leveltechnicaldesignskillst
Everyonewantstobehealthyandhappy.【C1】______,illnessoraccidentsmayoccurwithoutany【C2】______.Frequentlythepersonw
TheInternationalMonetaryFund(IMF)saysitexpectstheworldeconomytogrowmorethan4%boththisyearandnext.Itschief
Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.When
Ienjoythehappinessofharmoniousrelationshipamongmyfamilymemberswho______(同甘苦共患难).
A、Thelocaladvertisements.B、TheInformationAgency.C、TheSundaynewspaper.D、TheradioandTVstations.C
随机试题
下列各组异体字中类型完全不同的一组是()
A.干姜B.花椒C.荜茇D.胡椒治疗痫病痰多,宜选用的药物是
吸收剂量率的国际单位是
A.颌内动脉B.颌外动脉C.舌动脉D.面横动脉E.甲状腺上动脉
【背景资料】某施工单位承建了市区主要路段的某学生活动中心工程,地下2层,地上16层,钢筋混凝土筏板基础,地上结构为钢筋混凝土框架结构,首层阶梯报告厅局部层高21m,模板直接支撑在地基土上。填充墙采用普通混凝土小型空心砌块。施工过程中发生
商业银行承诺在未来某一日期按照事先约定的条件向客户提供约定的信用业务是()。
“人心不同,各如其面”,反映了人格的()的特点。
已知α1=(1,3,5,一1)T,α2=(2,7,a,4)T,α3=(5,17,一1,7)T,当α=3时,证明α1,α2,α3,α4可表示任一个4维列向量.
()是最早商品化的关系型数据库管理系统,也是应用最广泛、功能最强大的数据库管理系统之一。
假定有如下的Sub过程:Subsfun(xAsSingle,YAsSingle)t=x:x=t/yy=tModyEndSub在窗体上添加一个命令按钮(名为Commandl),然后编写如下事件
最新回复
(
0
)