单词：ectophytic parasite
单词：ectophytic parasite 相关文章
Studies Link Bee Decline to Insecticide Billion-dollar bees Bees pollinate the flowers that become fruits, nuts and vegetables. The work these insects do is worth about $18 billion a year to U.S. farmers. But honeybee colonies in the United States ha
VOA标准英语2012年(三月)
1.Life is not fair,get used to it . 2.The world won't care about your self-esteem.The world will expect you to accomplish something before you feel good about yourself. 3.You will not make 4,000 dollars a year right out of high school .You won't be a
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FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today we will tell about the disease malaria and efforts to defeat it. Scientists say progress in medical research could reduce the
2010年VOA慢速英语(四)月
By Carol Pearson Washington, D.C. 26 June 2007 Smallpox was the first infectious disease ever to be eradicated worldwide. But now, thanks to a two-decade campaign, guinea worm disease is about to be eradicated as well. Unlike smallpox, guinea worm di
2007年VOA标准英语（六月）
University of Maryland scientists are working on a genetically-engineered fungus that would kill the malaria parasite. The battle against malaria continues to challenge doctors, scientists, and public health officials. Now, a team of British and Amer
VOA标准英语2011年(三月)
By Jessica Berman Washington 19 March 2007 Transgenic mosquito Scientists say they are a step closer to showing that it may be possible to genetically alter mosquitoes to control malaria, a disease that kills more than a million people in developing
2007年VOA标准英语（三月）