常速英语
慢速英语
Keywords:
On April 26, 1986 the world changed forever. A part of the Chernobyl nuclear power plant exploded. The explosion released harmful chemicals into the air. Many people died. Even more people became sick...
Business. Management. What do bosses do all day? The shocking truth can at last be revealed. THANKS to closed doors and fierce gatekeepers, bosses are tricky to observe in their natural habitat. ...
Steve: Alan, good to talk to you today. Weisman: It's my pleasure. Steve: Your book is called The World without Us. It's a fairly self-explanatory title, but why don't you give us the nickel tour of...
Just as explorers have always sought to map new worlds, neuroscientists have sought to map the brain, trying to chronicle its connections and deduce how it works. But making a brain map is easier...
Bella Abzug was well known for many reasons.She was a lawyer and activist.She represented New York City in Congress.She spoke in a loud voice.And she always wore large hats.Ms. Abzug supported women's...
United States. Small-town corruption. Business paradise or den of thieves? An effort to abolish a highly unusual Californian city. EVEN Vernon’s logo proclaims that the city is “exclusively indus...
Wansink: One thing we find is that if you ask a typical person how many food related decisions a day they end up making, most people say 30 or so. In reality we find that a typical person makes betwee...
In this animation, we'll see the remarkable way our DNA is tightly packed up to fit into the nucleus of every cell. The process starts with assembly of a nucleosome, which is formed wh...
使用须知 常见问题
Copyright© 2015-2025 kuotuo Inc. All rights reserved
粤ICP备12056166号-3 粤公网安备 44010602002199号