首页
登录
学历类
In the 20th century the planet's populat
In the 20th century the planet's populat
题库
2022-08-02
80
问题
In the 20th century the planet's population'doubled twice.It will not double even once in the 1 century,because birth rates in much of the world have 2 steeply.But the number of people over 65 is set to 3 within just 25 years.This shift in the structure of the population is not as momentous as the 4 that came before.But it is more than enough to reshape the world economy.5 the UN's population 6,the standard source for demographic estimates,there are around 600m people aged 65 0r older 7 today.That is in itself remarkable;the author Fred Pearce claims it is 8 that half of all the humans who have ever been over 65 are alive today.But 9 a share of the total population,at 8%,it is not that 10 to what it was a few decades ago.By 2035,11,more than l.1 billion people-13%of the population-will be above the age of 65.This is a 12 result of the dropping birth rates that are slowing overall population growth;they mean there are 13 fewer younS people around.The"old-age dependency ratio"-the ratio of old people to those of working age-will 14 even faster.In 2010 the world had 16 people aged 65 and over for every 100 aduILs between the ages of 25 and 64,15 the same raLio it had in 1980.By 2035 the UN 16 that number to have risen to 26.In rich countries it will be much higher.Japan will have 69 0ld people for every 100 0f working age by 2035,Germany 66.17 America,which has a relaLively high 18 rate,will see its old-age dependency rate rise by more than 70%,t0 44.Developing counLries,19 today's ratio is much lower,will not see absolute levels rise that high;20 the proportional growth will be higher.Over the same time period the old-age dependency rate in China will more than double from 15 t0 36.Latin America wiU see a shift from 14 to 27.20选?A.soB.andC.ifD.but
选项
A.so
B.and
C.if
D.but
答案
D
解析
逻辑关系题。该空上句的much lower,not...that high与下文的higher完全相反,可以判断上下逻辑为转折,故填人but,即选项[D]为正确答案。
转载请注明原文地址:http://tihaiku.com/xueli/2700612.html
本试题收录于:
英语二研究生题库研究生入学分类
英语二研究生
研究生入学
相关试题推荐
Withtheglobalpopulationpredictedto
Withtheglobalpopulationpredictedto
Withtheglobalpopulationpredictedto
Withtheglobalpopulationpredictedto
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
Inthe20thcenturytheplanet'spopulat
随机试题
Althoughmostpeoplereturnfrompackageholidaysreasonablysatisfied,this
Ifawriterisgoingtowriteanarticleorotherwritings,heshouldgothro
Mystomachwouldturnattheideaoffryingpotatoesinanimalfat.A、我反对土豆和野生动物的
[originaltext]Howmanyofyoudrinkcola?Nearlyeveryone.[16]Didyouknow
马凡氏综合征因主动脉瘤引起主动脉瓣关闭不全时,可能出现的体征是()。A.脉压减
目前提倡的母乳喂养方法是A.按需哺喂 B.奶少时可延长哺喂时间,中间以牛奶代替
A.白茅根、仙鹤草、藕节 B.银花、连翘、牛蒡子 C.麦冬、玄参、天冬 D
闪光融合仪通常用来考察A.闪光灯效应 B.联觉现象 C.似动现象 D.诱动
无论何种情况,委托人在委托有效期内有权变更或撤销原来的委托指令。()
某机场施工单位与另一施工单位于2007年9月1日签订了机场站坪扩建工程建设的分包
最新回复
(
0
)