首页
登录
职称英语
When did the world’s population reach six billion? [br] [originaltext]F: Profes
When did the world’s population reach six billion? [br] [originaltext]F: Profes
游客
2024-10-16
49
管理
问题
When did the world’s population reach six billion? [br]
F: Professor Lee, the world’s population passed six billion on Octoberl 1, 1999, we are told. How long did it take to get there and how long will it take to reach seven billion? And ten billion?
M: The world’s population was 300 million at the dawn the Christian era, what we now call the year IAD. In AD1500, the world’s population reached 500 million. It took 304 years until 1804 to reach one billion, another 123 years until 1927, to reach two billion and then only another 33 years until 1960, to add another billion to reach three billion.
F: It’s very impressive that the recurring milestones of another billion added to the world’s population occurred quite quickly.
M: Indeed. The world population reached four billion in 14 years in 1974; five billion in 13 years in 1987, and six billion in 12 years in 1999. Data suggests that a world population of seven, eight, and nine billion will take respectively another 11,12 and 14 years to achieve. The world’s population should hit ten billion mid-way through the 21 century in the year 2054.
选项
A、304 years.
B、123 years.
C、33 years.
D、14 years.
答案
C
解析
对话中男士有提到人口增长到10亿用了304年,增长到20亿用了123年,增长到30亿只用了33年。
转载请注明原文地址:https://tihaiku.com/zcyy/3803634.html
相关试题推荐
WhatdidIndonesiaandAcehrebelsdoonMonday?[br][originaltext]Indone
WhatdidIndonesiaandAcehrebelsdoonMonday?[originaltext]Indonesiana
WhyAmericanscientistsaredevelopingthesemaps7[br][originaltext]Americ
WhyAmericanscientistsaredevelopingthesemaps7[originaltext]Americansci
WhatcanwelearnaboutriversinAustralia?[originaltext]Atleastsevenp
WhichofthefollowingisNOTthepurposeofthesummit?[br][originaltext]
IsraeliPrimeMinisterBenjaminNetanyahu______.[originaltext]Israelipros
Whatconclusioncanbedrawnfromthescientists’observation?[originaltext]
Whatdothemanandthewomantalkabout?[br][originaltext]W:Birdwatching!
Whatdothemanandthewomantalkabout?[br][originaltext]W:Birdwatching!
随机试题
Whilelongwalksaregreat,campingforseveraldaysisabetter,more【C1】__
【S1】[br]【S10】D该空格前为形容词common,空格后为介词of,因此填入空格处的应为名词。该句意为“我很愿意相信,这对于我们每个人来说都是个整体
中枢下丘脑性尿崩症需要加压素治疗,从药物作用时间、给药途径和副作用等方面考虑,首
某股票看涨期权(A)执行价格和权利金分别为60港元和4.53港元。该股票看跌期权
根据《测绘技术设计规定》,下列内容中,属于测绘技术设计应遵循的基本原则的是A.
工业产权:是指法律规定对应用于生产和流通中创造发明和显著标记等智力成果在一定期限
当交易所涨跌停板制度、交割制度发生变化时,套利行为同样受到影响。()
(2017年真题)根据《行政许可法》规定,下列文件中,可以设定行政许可的
下列各项中,会引起资产与权益同时增加的有()。A.从银行提取现金备用 B
自动焊接机(ε=100%)单相380V,46kW,cosψ=0.60,换算其等效
最新回复
(
0
)