首页
登录
职称英语
When did the world’s population reach six billion? [originaltext]F: Professor L
When did the world’s population reach six billion? [originaltext]F: Professor L
游客
2023-11-23
57
管理
问题
When did the world’s population reach six billion?
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 1AD. In AD 1500, 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 33years 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 13years in 1987, and six billion in 12years in 1999. Data suggests that a world population of seven, eight, and nine billion will take respectively another 11,12 and 14years to achieved. The world’ s population should hit ten billion mid-way through the 21 century in the year 2054.
选项
A、October 10, 1999.
B、October 11, 1999.
C、November 10, 1999.
D、November 11, 1999.
答案
B
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3211202.html
相关试题推荐
MyprofessorbrotherandIhaveanargumentaboutheadandheart,aboutwhet
MyprofessorbrotherandIhaveanargumentaboutheadandheart,aboutwhet
MyprofessorbrotherandIhaveanargumentaboutheadandheart,aboutwhet
Googlemaybevaluedatmorethan$185billionandboastmillionsofusers,b
[originaltext]W:Letmeturnitontothemanwhomayendupthewinner,Mr.As
[originaltext]W:Letmeturnitontothemanwhomayendupthewinner,Mr.As
[originaltext]W:Goodevening,listeners.ThisisBBC.Today,weareverydelig
[originaltext]W:Goodevening,listeners.ThisisBBC.Today,weareverydelig
[originaltext]W:Goodevening,listeners.ThisisBBC.Today,weareverydelig
[originaltext]J:Becausein1987theDepartmentofEducationandScienceestabl
随机试题
[originaltext]W:Mybikewasstolenrecently.Isitpossibletolendmeyoursf
Top10WaystoImproveYourCommunicationSkillsA)Effectivecom
A.上颌2|2 B.下颌4|4 C.上颌3|3 D.上颌6|6 E.上颌
A.羊水呈浅绿色 B.羊水无色澄清 C.羊水呈棕黄色 D.羊水呈黄绿色
关于正常产道,下列哪项是正确的( )A.中骨盆平面的横径是骨盆各平面最短的横径
A.36000元 B.37500元 C.45000元 D.48000元
下列药物中,可用于治疗抑郁症的药物有A.氯米帕明 B.吗氯贝胺 C.氟伏沙明
某花炮厂属私营企业,主要产品有鞭炮和烟花。在全省烟花爆竹企业专项整治期间,该厂从
以下工程属于非民航专业工程的是()。A、航站楼土建工程 B、航站楼工艺流程
严重感染时患者基础能量消耗是A.20~24kcal/(kg·d) B.25~2
最新回复
(
0
)