单词：Ecpoviruses
单词：Ecpoviruses 相关文章
High-Tech Images Show How Viruses Infect Cells At the University of Texas Medical School at Houston, Jun Liu uses a powerful electron microscope to examine E. coli bacteria and the tiny T-7 virus that infects them. Liu says until now, scientists coul
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STEVE INSKEEP, HOST: The Pentagon is funding some new research on insects and plant viruses. It says the goal is to protect agricultural crops. Some critics say it looks more like an attempt to make biological weapons. Here's NPR's Dan Charles. DAN C
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US Treasury Sec, Greenspan Paint Positive Picture of US Economy Barry Wood Treasury Secretary John Snow says the U.S. economy is on a strong growth path. Mr. Snow told a Washington gathering that an e
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