单词：density-dependent mortality
单词：density-dependent mortality 相关文章
By Tendai Maphosa Harare 25 October 2006 Silver Packry, right, feeds one of her children while her mother, left, looks on in Harare, October 17, 2006 Child mortality is on the increase in Zimbabwe, according to the country's health minister. Health
2006年VOA标准英语（十月）
This is the VOA Special English Health Report. A new study examines and compares adult death rates worldwide over the last forty years. For each country, researchers estimated the probability that a fifteen-year-old today will die an early death befo
2010年VOA慢速英语(五)月
Worldwide, giving birth is far less dangerous than it was even two decades ago. A new report shows that maternal mortality, however, remains a serious threat - even in wealthy, industrialized nations. A report released by New York City's health depar
VOA标准英语2010年(六)月
The report issued by the WHO shows birth-related mortality declined by 34 percent during the past decade - from about 546,000 deaths in 1990 to an estimated 358,000 deaths in 2008. That is an annual rate of decline of about 2.3 percent. Although the
VOA标准英语2010年(九)月
By Anjana Pasricha New Delhi 10 December 2007 The United Nations says India needs to reduce child mortality rates. A new report by the U.N. Children's Fund or UNICEF, says one-fifth of the worldwide deaths of children under the age of five occur in t
VOA常速英语2007年（十二月）
FUZHOU, April 11 (Xinhua) -- China is preparing to set up a national mortality database to obtain cause-of-death information, marking a step toward establishing a monitoring network for health risk factors across the country, an official said Wednesd
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