单词：
单词： 相关文章
Of the more than 80 million children born every year in the developing countrie [00:05.43]and estimated 5 million die [00:08.65]and at least twice as many are disabled by disease which have been largely eliminated in developed nations through immuniz
考研英语听力基本功4
Broadcast: Feb 02, 2003 The U.N. Children's Fund units service is starting a weeklong campaign to immunize thousands of Afghan women against tetanus. This is part of a global campaign to eliminate mat
VOA2003（上）-健康之旅
Pertussis Rises, Research Focuses on Vaccine Pertussis is one of the leading causes of unnecessary infant and child deaths worldwide. The deaths could largely be prevented with a vaccine. Most of the cases of pertussis occur in developing countries,
VOA标准英语2012年(十二月)
DEVELOPMENT REPORT – August 12, 2002: Campaign Against Tetanus By Jill Moss (Photo -UNICEF) This is the VOA Special English Development Report. The United Nations Children’s Fund, UNICEF, has laun
农业与发展
The UN Children's Fund, in partnership with diaper-maker Pampers, is launching a global campaign to eliminate tetanus by 2012. UNICEF reports the disease kills about 140,000 newborn infants and 30,000 mothers every year in the poorest countries in t
VOA标准英语2008年（十月）
The second type of vaccine contains an attenuated virus. This virus is alive, but has been grown in the lab for several generations, so it isnt able to multiply very well in humans. With the attenuated virus multiplying very slowly, your body is able
英语时差8，16