单词：fertility rates
单词：fertility rates 相关文章
Fertility rates have fallen in countries with woeful economies, such as Greece and Italy. 在经济状况糟糕至极的国家中，如希腊和意大利，它们的生育率已经下跌。 But they have also fallen in countries that sailed through t
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Fewer Babies, Rising Longevity Lead to Global Aging Crisis 出生率下降和人均寿命的提高导致全球人口老龄化危机 In the year 2000, fertility rates in Europe and other parts of the d
VOA2005（上）--社会新闻点评
October 31st 2011, that's the date the U.N. says the 7 billionth person will be born on Earth,7 billion.That's a crowded planet, says Dr. Jeffrey Sachs, the director of the Earth Institute at Columbia University and author of the Price of Civilizatio
万花筒2011年
Schools in north China's Shanxi Province have been banned from organizing overseas study tours for profit after a plane crash killed two Chinese girls in San Francisco. The provincial education department announced the ban in a statement issued on Tu
世界各地新闻集锦
Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quality have declined over the last few decades. So researchers from two fertility clinics in Spain loo
60秒科学
According to the Washington Post of September 26, Japan's government has been paying more attention to the nations fertility rate, which influences the country's economic development。 The coastal region of Fukui has Japan's biggest share of dual-in
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