单词：catholicons
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi
Scientific American(十二)月
One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond
2017年Scientific American(二)月
By Michael Drudge London 12 March 2006 Officials at six-power world trade talks in London say there has been no breakthrough and only incremental progress in their drive to tear down trade barriers in
2006年VOA标准英语（三月）
Electronics Make Driving Easier, Safer 电子产品让驾车变得更容易 LOS ANGELES New cars increasingly use connected technology, and incremental improvements in automotive electronics are making cars safer and smarter. Some new models are flas
VOA标准英语2015年(十一月)
But measuring movement is actually pretty tricky. Any small mistake in the measured acceleration results in position errors that grow with time. So even if youre standing still and just rocking in place, a navigation computer relying solely on the IM
英语时差8，16
But measuring movement is actually pretty tricky. Any small mistake in the measured acceleration results in position errors that grow with time. So even if youre standing still and just rocking in place, a navigation computer relying solely on the IM
英语时差8，16