标签：fertility 相关文章
Unit 62 World Bank The World Bank is one of the major channels through which development aid is passed from the Industrial West to the poor and developing nations. In the last decade, important changes have taken place in the size of the Bank's opera
英语流行话题阅读：语境识词4500
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
By Mil Arcega Washington, D.C. 13 June 2006 Watch Fertility Report Egg fertilization in a laboratory Last year, infertile couples in the U.S. spent nearly $3 billion to improve their chances of having babies. They also paid out more than $38 million
2006年VOA标准英语（六月）
Health Report - Dating Sites' Claims; Female Voices and Fertility 健康报道 - 女性月经周期期间不同时间点声音对男性吸引力不同 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 As
2012年VOA慢速英语(二)月
SCOTT SIMON, HOST: Three-D printers are being used these days to make all kinds of things - jewelry, artwork, or even guns. Now, scientists have used a 3-D printer to create a functioning mouse ovary. Yes. NPR's Rob Stein explains. ROB STEIN, BYLINE:
2017年NPR美国国家公共电台5月
Its Easter in the UK and the shops are full of Easter eggs, hot-cross buns and Easter bunnies. Although Easter is widely seen as a Christian festival which celebrates the resurrection of Jesus, its origins pre-date Christianity and many of its symbol
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