We talk of the decline in the population and of codfish and herring while he waits for a herring boat to come in.

當(dāng)他等待捕鱈船到來的時(shí)候九九视频精品在线，我們談?wù)撊丝诘南陆颠€有鯡魚和鱈魚AAA亚洲无码高清。

Because of the decline of growth potential and quantitative decrease in population, as well as deficiency in young seedlings, the community of Liriodendron chinense is now at the senescence phase.

從鵝掌楸種群的生勢(shì)衰退和數(shù)量削減以及幼齡個(gè)體的貧乏來看人人射人人奸，目前這個(gè)群落已處于發(fā)育過程的衰老階段影音先锋综合网站。

Since to provide increased goods and services for more people does require technological advances, capital investment, and skilled labor, there must be a point beyond which an increase in population leads to a lowering of real income and a decline the level of well-being, Thus it came to be said that when a population should experience in the long run an ever-falling supply of goods and services, per capita, it was no longer of best size.

既然為更多的人口提供更多的商品和服務(wù)確實(shí)需要技術(shù)進(jìn)步，資本投資和有技術(shù)的工人，那么總有那么一個(gè)限度www.国产.com，如果人口增長(zhǎng)超過這個(gè)限度就會(huì)導(dǎo)致國(guó)民實(shí)際收入的減少和生活水準(zhǔn)的降低久久人人插。因此，有人提出毛片视频公司，如果一個(gè)國(guó)家的人民長(zhǎng)期以來的人均商品供應(yīng)和服務(wù)水平不斷下降国产片三级，這個(gè)國(guó)家就已經(jīng)人口過剩了。

Since to provide increased goods and services for more people does require technological advances, capital investment, and skilled labor, there must be a piont beyond which an increase in population leads to a lowering of real income and a decline the level of well-being, thus it came to be said that when a population should experience in the long run an ever-falling supply of goods and services, per capita, it was no longer of best size.

因?yàn)?1G黄色视频，以提供更多的商品和服?wù)為更多的人確實(shí)需要技術(shù)進(jìn)步日韩欧美尻逼视频，資本投資，以及技術(shù)熟練的勞動(dòng)力操女人逼黄色的视频，必須有一個(gè)皮諾以外无码精品A∨在线观看鞠婧祎，人口增長(zhǎng)導(dǎo)致的實(shí)際收入降低，并減少了水平的福祉H视频在线观看免费网站，因此guochanav，它應(yīng)該說，當(dāng)一個(gè)人口應(yīng)經(jīng)驗(yàn)從長(zhǎng)遠(yuǎn)看不斷下降供應(yīng)的貨物和服務(wù)91精品欧美在线观看免费，人均欧美性爱园，它不再是最佳尺寸。

Longitudinal decline in lung volume in a population of children with sickle cell disease.

在患鐮狀紅細(xì)胞性貧血的兒童人群中国产在线人人操，肺容量呈縱向下降黄网站免费进入。

It is generally believed that the chief reason for the increase in population in developed countries is not so much the rise in birth rates as the decline in death r ates as a result of the improvement in medical care.

普遍認(rèn)為，在發(fā)達(dá)國(guó)家人口增長(zhǎng)的主要原因與其說是出生率的上升日韩资源在线观看快射视频免费，還不如說是由于醫(yī)療保健的改善使死亡率下降了1024手机看片的你懂得亚洲。

It is generally believed that the chief reason fo r the increase in population in developed countries is not so much the rise in birth rates as the decline in death r ates as a result of the improvement in medical care.

普遍認(rèn)為，在發(fā)達(dá)國(guó)家人口增長(zhǎng)的主要原因與其說是出生率的上普遍認(rèn)為国产欧美精品综合区，升日韩欧美一区二区三区夜，還不如說是由于醫(yī)療保健的改善使死亡率下降了激情综合五月激情综合五月65。

It is generally believed that the chief reason for the increase in population in deve loped countries is not so much the rise in birth rates as the decline in death rates as a resu lt of the improvement in medical care.

普遍認(rèn)為A毛片在线，在發(fā)達(dá)國(guó)家人口增長(zhǎng)的主要原因與其說是出生率的上升，還不如說是由于醫(yī)療保健的改善使死亡率下降了欧美日本视频。

Fast-falling birth rates and rising AIDS deaths are stifling the population explosion — and could lead to a decline in global population in the second half of the 21st century.

迅速降低的出生率和艾滋病死亡人口的增加正在抑制全球人口爆炸——而且可能導(dǎo)致全球人口在21世紀(jì)的后50年下降一级做a爰片久久毛片A片久久。

Tributes to the decline in population there.

齡在上升，這也促使了人口的下降国产精品一区24p。