单词：
单词： 相关文章
This is Scientific Americans' 60-Second Science. I am Karen Hopkin, this will just take a minute. Most school kids know that snakes can see with their noses, Vipers in particular have these organs on their noggins that allow them to see heat which he
Scientific American(一)月
Ever get a ringing in your ears after a loud blast of music on your iPod? Thats one example of the usually temporary condition called tinnitus, the sensation of sound even when no sound is being produced. But a new inventioncreated by high school stu
Scientific American(九)月
By Scott Stearns White House 18 April 2006 President Bush President Bush is rejecting critics of Defense Secretary Donald Rumsfeld. The president says he has the final say in whether Rumsfeld stays in
2006年VOA标准英语（四月）
THIS IS AMERICA - Inside the Complex Worlds of Deafness and Deaf Culture in America Hearing technology offers more hope than ever. Yet the devices are not always welcomed. Also, how one young woman is learning to accept herself for who she is. Trans
VOA慢速英语2008年（五）月
Teen Inventors Fight Tinnitus Irish teenagers Eimear OCarroll and Rhona Togher developed a treatment they hope will help people with tinnitus, an unpleasant ringing in the ears. Cynthia Graber reports Ever get a ringing in your ears after a loud blas
60秒科学
And when the markets in Europe closed a couple of hours ago, the London FTSE 100 was down 110 points. The Dax and Euro also down. In the US, trading comes to a close shortly. The Dow Jones is down. And the Australian dollar is worth around 87 US cent
澳洲ABC新闻快递2014年