The demographer will coordinate data collection and analysis on human settlements conditions .

這個人口統(tǒng)計學(xué)家將會整合這些數(shù)據(jù)并分析人類的居住條件亚洲国产人成在线观看。

Preston, a demographer at the University of Pennsylvania who is among the leading experts on mortality rates from disease.

他說："美國實際上在重大疾病的診斷和治療方面做得相當不錯伊人网999，世界各國間的對比不能說明我們處境悲慘国产精品美女视频一区二区。"

China's unbalanced sex ratio may cause serious consequences as millions of men will be unlikely to find their spouses around 2020, said a Chinese demographer.

中國不平衡的性別比率也許會導(dǎo)致一系列問題91KCM国产在线精品，到2020年左右，將可能會有數(shù)百萬的男性找不到他們的配偶女生的奶罩(黄片)，一位中國人口統(tǒng)計學(xué)家說久久久夜色精品国产热热。

"It really raises the question of what should be considered normal ageing," says Kenneth Manton, a demographer from DukeUniversity in North Carolina.

"這真的引起的問題是什么，應(yīng)該認為是正常的老化看无码国产毛片视频直播，說："丁 manton 香蕉高清影视一级在线观看，人口統(tǒng)計學(xué)家，由杜克大學(xué)，在北卡羅來納州看免费三级黄片不卡视频。

"It's a triple time bomb," says University of Lisbon demographer Nuno da Costa.

里斯本大學(xué)的人口統(tǒng)計學(xué)家Nuno da Costa說「這是三倍的炸彈18无码AAA片免费看，太少的小孩及太多的老人及太多年青人仍要離開的鄉(xiāng)村

This was the grim fact identified by Thomas Malthus, an English demographer, that a country's economic potential was limited by its food supply.

這就是英國人口學(xué)家馬爾薩斯發(fā)現(xiàn)的可怕事實：一國的食物供應(yīng)限制了其經(jīng)濟發(fā)展之潛力。

"China's resources and environment cannot sustain natural population growth without administrative intervention," said Hou Dongmin, a demographer at Renmin University of China in Beijing.

計生委副主任趙白鴿在1月15日在新聞發(fā)布會上表示："中國的計劃生育政策不是強迫性的国产真人无码作爱兔费视频，人們是在自愿的基礎(chǔ)上實施計劃生育的黄色一级免费福利。"

America's suburbs are becoming much more diverse places, with more ethnic minorities, more people with degrees and more gays, according to Gary Gates, a demographer at the University of California, Los Angeles.

據(jù)洛杉磯加利福尼亞大學(xué)的人口統(tǒng)計學(xué)家加里·蓋茨的看法，美國的郊區(qū)正變成得更加多樣化黄色视频在线观看wwww，有更多的少數(shù)族裔，有更多有學(xué)位的人国产一级a免费无码视频，還有更多的同性戀A片在线一区看。

At the dawn of the Industrial Revolution in the late 1700s, English demographer Thomas Malthus foresaw problems with growth.

80，18 世紀晚期正值工業(yè)革命伊始之時www欧美系列，英國人口學(xué)家托馬斯馬爾薩斯就預(yù)見到了人口增長所帶來的問題人人看人人射人人操。

Demographer Richard Lee of the Universiy of California at Berkley says this aging of the world has a significant impact on economies.

來自 Berkley 加利福尼亞大學(xué)的人口統(tǒng)計學(xué)家 Richard Lee 說，世界人口老齡化對經(jīng)濟產(chǎn)生深遠影響国产福利最新地址发布页8010。