单词：vacillative
单词：vacillative 相关文章
Millions More Children to Receive Vaccines More than one million children die each year from severe diarrhea and pneumococcal disease. Today (Tuesday), the GAVI Alliance announced an expanded campaign against the two leading killers of children world
VOA标准英语2011年(九月)
By Cathy Majtenyi Nairobi 28 June 2006 Sauri, in western Kenya, is one of a dozen so-called Millennium Villages set up across the continent by American and African development experts and funded by governments and private donors. Local committees wi
2006年VOA标准英语（六月）
If you could take a vaccine that would protect you against cancer, wouldn't you take it? Well, for cervical cancer, there is a vaccine. It protects against a virus called HPV, which can lead to cancer of the cervix. But a new study reports that many
VOA标准英语2010年(十一)月
US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N
VOA标准英语2011年(八月)
Yoga Helps Mentally Ill Improve Their Lives Ericpaul Clark has been taking yoga classes for several months. Hes been in jail and a psychiatric facility after abusing drugs. Today, he says hes clean and looking forward to a better life. Yoga helps kee
VOA标准英语2013年(七月)
By Jessica Berman Washington 11 May 2006 French researchers at the Sanofi Pasteur Institute say they have developed a bird flu vaccine that, so far, appears to be safe and effective in humans. But obs
2006年VOA标准英语（五月）