单词：post-vaccinal poliomyelitis
单词：post-vaccinal poliomyelitis 相关文章
Broadcast: Feb 05, 2003 U.N. agencies say they are getting ready to launch the largest-ever mass immunization campaign to fight an outbreak of polio in India. The agencies are planning to vaccinate 16
VOA2003（上）-健康之旅
My husband asked me to go to the post office to mail his resume in anticipation of a job interview. He instructed me to send it the fastest way possible. Struck by the urgency in his voice, I grabbed
英汉幽默故事选读
My teen-age daughter was preparing to return home after having visited her grandparents for a few weeks one summer. Her grandfather gave her 12 post cards .
英汉幽默故事选读
The warring factions in Afghanistan say they will heed a call by the United Nations to stop fighting so aid workers can begin a three-day polio vaccination campaign. The Taliban, the Afghan army and international military forces say they will halt t
VOA标准英语2008年（九月）
By David McAlary Washington 23 May 2006 Chickens at US farm Scientists have developed an efficient, cheap way to vaccinate birds against avian influenza and possibly prevent the spread of the deadly H
2006年VOA标准英语（五月）
HEALTH REPORT - Countries in the Americas Observe Vaccination Week By Cynthia Kirk Broadcast: Wednesday, April 27, 2005 I'm Gwen Outen with the VOA Special English Health Report. Officials hope to vac
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