Today,the research program at Gombe represents one of the longest continuous wildlife studies in the world.
VOA: special.2009.11.18
The National Multiple Sclerosis Society says more than 100 studies are continuing around the world.
VOA: special.2009.01.06
However,like millions of others, Hooks left his studies to serve in the armed forces during World War II.
VOA: standard.2010.04.16
Studies show prosecution rates for these crimes are extremely low the world over.
VOA: standard.2009.08.21
Khan pointed to numerous scientific studies from Europe,Canada, and the United States, as well as reports from the World Health Organization and the U.S.Institute of Medicine, that all show a link between veterinary use of antibiotics and higher risk of drug-resistant infections among humans.
VOA: standard.2010.07.21
应用推荐