单词：wheatfall
单词：wheatfall 相关文章
Carnivores Spread Distemper to Lions New research shows that dogs are no longer the primary source of a disease that has infected and killed lions in Tanzania. Canine distemper now appears to be spread mostly by other carnivores, such as hyenas, jack
VOA标准英语2015年(一月)
This is Scientific Americans 60-Second Science, Im Cynthia Graber, this will just take a minute. Our ears are highly attuned to sounds in the world around us. Its not just the frequency of the sound itself. There are also subtle differences and shift
Scientific American(一)月
A: 欢迎大家来到这期的美语训练班! 我是杨琳! B: 我是Mike! 杨琳，来告诉大家今天都要学什么? A: 没问题! 今天，我们要带你去看看在美国看病有什么不同，聊聊怎么为工作面试做准备，还要告诉
美语训练班
Over the outbreak of Giant Panda Disease in north China's Shaanxi province, one of the three giant pandas diagnosed with distemper is now in deep coma, after another fatally succumbed to the disease on December 9. The Shaanxi Rare Wild Animal Rescue
cctv9英语新闻2015年
by Jill Moss Broadcast: July 23, 2003 This is Bill White with the VOA Special English Health Report. A medical company in Australia, PanBio, has developed a new test for West Nile 1)virus. The test ex
VOA2003（下）-环境与健康
CANBERRA, Sept. 6 (Xinhua) -- A rare virus that can be contracted by humans has killed a large number of Victorian pigeons after being detected in the Australian state for the first time, Agriculture Department confirmed on Tuesday. According to the
英语新闻