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
2015-03-29
99
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 Behind the UN’s certainty may lay outdated and unreliable census data.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:
Hania Zlotnik agrees that an interval of several months or even a year would be a reasonable______.
选项
答案
range of uncertainty
解析
由题干中的Hania Zlotnik定位到第二段最后一句.由该句可知Hania认为有几个月甚至一年的差距是在一个合理范围内的不确定性。
转载请注明原文地址:https://kaotiyun.com/show/0I5K777K
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
WhenIwasachild,myfamilyusedtogoonholidayeveryyeartovisitourrelativesinthenorth-eastofEngland.Oneofthem
Cricket,althoughlovedbymillionsofpeople,isnotoneoftheeasiestsportstounderstand.Indeed,thegamehaslotsofsubt
Changethefirstwordofthethirdpairinthesamewayastheotherpairstogiveanewword.Example:bind,hindbare,har
在测试阅读、数学和科学素养的国际学生评估项目(PISA)中,部分表现最优秀的孩子来自亚洲国家。【T1】亚洲人认为,让儿童从早期开始就接受优质教育会令其长大后有更加出色的表现。【T2】中国、日本和韩国采用了相同的学前教育体系,为儿童提供进一步学习所需的知
Duringhislifetime,JohannStraussJr.(1825-1899)wasoneofthemostpopularcomposersinhisnativecityofVienna.Althoughi
联合国相关机构发布报告称,去年的新冠疫情对全球经济造成了“前所未有”的打击,全球损失了相当于2.25亿个全职工作岗位。【T1】新冠疫情导致全球工作时间减少了8.8%,是2008年金融危机造成损失的四倍多。(financialcrisis)【T
GoingtothebeachismanyAmericans’favoriteactivity.IntheareanearNewYorkCity,ninemillionpeopleusedtogototheb
Julie:Doyouknoweverybodyhere?Paul:No.Hardlyanybody.Julie:HowdoyouknowSam?Paul:He’safriendofMark’s.Howd
IhavesetouttotravelfromtheAtlanticOceantothefoothillsoftheBolivianAltiplano,fromtheoncefamouscoffeetowno
A、Shedidn’tenjoythefilmatall.B、BothsheandTinalikedthefilm.C、Sheenjoyedthefilm,butTinadidn’t.D、Tinadidn’tl
随机试题
从下列茶品中选出一种蒙古族人民喜爱的茶
斯丹达尔抨击古典主义,为浪漫派辩护的论著是
羊水栓塞脂肪栓塞
建设单位、设计单位、施工单位、工程监理单位违反国家规定,降低工程质量标准,造成重大安全事故的,对直接责任人()。
根据现行国家标准《洁净厂房设计规范》(GB50073),关于洁净厂房防火和疏散的说法,正确的是()。
财务内部收益率是反映项目()能力的()指标。
多步式利润表中的“营业收入”即指“主营业务收入”。()
铁路运输的技术经济特性,可以用一定的技术经济指标来反映,即运营技术指标、实物指标和价值指标。()
根据我国《教育法》的规定,学校及其他教育机构违反国家有关规定向受教育者收取费用的、由()责令退还所收费用。
Whenatermloanisrepaidbyinstallmentsbutwithalargeamountpayableonmaturity,itis
最新回复
(
0
)