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
On October 31, a newborn baby somewhere in the world will become the 7 billionth member of the human race. Or so says the UN—alt
On October 31, a newborn baby somewhere in the world will become the 7 billionth member of the human race. Or so says the UN—alt
admin
2016-06-02
70
问题
On October 31, a newborn baby somewhere in the world will become the 7 billionth member of the human race. Or so says the UN—alternatively, this date could be at least a year too early. Behind the UN’s certainty may lay outdated and unreliable census data. The suspicion is that millions of births and deaths have not been counted and there is huge uncertainty about the rate at which women are giving birth. The precise "day of 7 billion" may not matter much. But the inaccuracies(不精确)make it harder to answer a more important question: is human population set to peak within the next few decades or will it carry on growing beyond that?
Wolfgang Lutz of the Vienna Institute of Demography says the UN is "under political pressure to disregard(忽视)uncertainty and name a date" for 7 billion. But he and colleague Sergei Scherbov estimate that the world probably won’t reach 7 billion until early in 2013, though it could be as late as 2020. The director of the UN population division Hania Zlotnik defends her data but agrees that "an interval of a few months or even a year would be a reasonable range of uncertainty".
One problem for demographers(人口统计学家)is undercounting. Even developed countries calculate their censuses miss up to 3 percent of people. Up-to-date figures have to adjust for both of this and the changes since the last census, which could be decades in the case of some African countries. So adjusting for extra people is routine. The big danger, Scherbov says, may be over-adjusting. The world has seen a dramatic decline in fertility in recent years, with the average woman now having only 2. 5 children, half as many as her grandmother 50 years ago. So there may be far fewer new arrivals than demographers assume.
Questions:
The censuses miss of developed countries would be up to______.
选项
答案
3 percent of people
解析
由题干中的censuses miss和developedcountries定位到第三段第二句。由定位句可知,即使是发达国家的人口普查数据的误差也高达3%。
转载请注明原文地址:https://kaotiyun.com/show/vW5K777K
本试题收录于:
浙江省大学英语三级题库大学英语三级分类
0
浙江省大学英语三级
大学英语三级
相关试题推荐
Toparaphrase18th-centurystatesmanEdmundBurke,"allthatisneededforthetriumphofamisguidedcauseisthatgoodpeople
Asforthemissingfunds,thecompanymanager,whendemandedtogiveanexplanation,couldnotevencomeupwitha___________on
Formanyyoungadultsembarkingontheiruniversityorcollegecourses,readingcanstopbeingfunandbecomeachore.Facedwit
Iwasdirty,smelly,hungryandsomewherebeneathallthat,suntanned.ItwastheendofanInter-Railholiday.Mybodycouldn’t
Oneofthethingsyoungpeoplefindirritatingislisteningtotheirparentsgoingonandonabouthoweverythingwaslesscomme
Thoughportrayedas【D1】______inmovies,criminalsin【D2】______areinconceivablystupid.Belowarethreestoriesaboutthem:Cou
Thoughportrayedas【D1】______inmovies,criminalsin【D2】______areinconceivablystupid.Belowarethreestoriesaboutthem:Cou
Thoughportrayedas【D1】______inmovies,criminalsin【D2】______areinconceivablystupid.Belowarethreestoriesaboutthem:Cou
Thoughportrayedas【D1】______inmovies,criminalsin【D2】______areinconceivablystupid.Belowarethreestoriesaboutthem:Cou
随机试题
“不管白猫、黑猫,抓到耗子的就是好猫”这句谚语描述的是()
芦丁属于()
患者,男,45岁。2周前因龋洞在外院做银汞合金充填。术后遇冷敏感症状加重,叩痛(+),近日有阵发性自发痛,昨晚因疼痛难以入眠。诊断最可能为
乳痈发病多在产后的
尿酸水平增高见于
如图所示,刚架的支座反力为()。
在《担保法》规定的五种担保方式中,既允许债务人用自己的财产,也可以用第三人的财产向债权人提供担保的方式有()。
在游客进入餐馆落座后,地陪应向他们介绍该餐馆的()。
位图与矢量图相比,位图(22)。(2009年11月试题22)
下列叙述中正确的是( )。
最新回复
(
0
)