单词：Bacterium coli anindolicum
单词：Bacterium coli anindolicum 相关文章
Wouldnt it be great if we could trade genes with other species? For example, suppose you could trade the family cat your genes for intelligence for its genes for physical coordination! Well, okay, thats not likely to happen anytime soon. But DNA trad
英语听力文摘 English Digest
By Mil Arcega Washington, DC 19 September 2006 watch report on E Coli The United States Food and Drug Administration (F.D.A.) has expanded its search for the source of the deadly E.Coli bacterium that has already killed one woman and sickened more t
2006年VOA标准英语（九月）
The drug Taxol is a powerful weapon in the fight against cancer, but it's very expensive and complicated to manufacture. Now, scientists at Tufts University and the Massachusetts Institute of Technology (MIT) say they've taken the first steps to make
VOA标准英语2010年(十)月
The Smell of Dirt A lot of people love that fresh-dirt smell. The surprising thing, though, is that it isnt coming from the dirt itself. Microbiologist s have traced the pleasant odor to an organic chemical called geosmin. No way! But how does geosmi
英语听力文摘 English Digest
COPENHAGEN, June 7 (Xinhua) -- The outbreak of infections caused by E. coli bacteria may be over in Denmark as no new cases have been reported here since Friday. According to Denmark's National Serum Institute (NSI), there are 18 confirmed cases of s
英语新闻
Europe has been in the grip of an outbreak of E.coli, which has so far infected 2,400 people and killed 24. Most cases have been caused by contaminated food produce, although E.coli can spread from person to person. Daniel Bahr, the German health min
英语听力精选进阶版