单词:
单词: 相关文章
This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Germanys Harald zur Hausen and Frances Luc Montagnier and Francoise Barre-Sinoussi share the 2008 Nobel Prize in Physiology or Medicine, awarded October 6th. Barre-Sin
This is the VOA Special English Health Report. Sleeping sickness is a deadly disease that infects about sixty thousand people in Africa each year. Now scientists in Scotland say they may have found a new treatment. Their findings are in the journal S
AMERICAN MOSAIC - The Jeep - One of the Most Famous Vehicles in the World is Celebrated at its Birthplace MARIO RITTER: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Mario Ritter. Today, we play music that the television company MTV
By Stephanie Ho Washington 15 July 2007 U.S. National Security Advisor Stephen Hadley says Washington still has concerns about North Korea's nuclear program, despite Pyongyang's decision to shut down its main plutonium reprocessing facility. VOA's St
An international group of scientists has engineered an enzyme which they say will be able to eat some of the most common plastic. It's being touted as a possible way to fight pollution. Improvements aimed at making the enzyme work more effectively ar