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This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? We all know to wash our hands after handling raw poultry. But next time youve just cruised down the interstate behind a truck full of chickens or Thanksgiving turkey
Scientific American(十一)月
Unit 64 The Story of Corn Before 1492, when Columbus discovered America, no one living in Europe knew corn existed. Up to this time, corn grew only in the Americas. Scientists believed corn was originally cultivated by Indians in the highlands of Mex
英语流行话题阅读：语境识词4500
85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04
科技之光
Animals in many large livestock-raising operations around the world get a small but steady dose of certain antibiotics in their feed. Doctors around the world are finding it harder and harder to cure some infections. Bacteria are developing resistanc
VOA标准英语2010年(五)月
BEIJING, March 6 (Xinhua) -- China's health authority on Tuesday announced plans to further curb the overuse of antibiotics, including setting caps for the variety and use ratio of antibiotics, and punishing doctors found to misuse antibiotics. The M
英语新闻
BEIJING, May 8 (Xinhua) -- A national campaign against the abuse of antibiotics looks to be progressing with usage notably dropping, said the Ministry of Health on Tuesday. An inspection over more than 430 major hospitals nationwide showed that the p
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