单词:seed testing science
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SCIENCE IN THE NEWS - Orchids Look Weak, But Many Are Stronger Than They Appear From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Christopher Cruise. And Im June Simms. Today we tell about the beauty and science of orchids
Professor Colin Blakemore works at Oxford University Medical School doing research into eye problems and believes that animal research has given humans many benefits: The use of animals has been central to the development of anaesthetics, vaccines an
This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. For worse or for better, humans are changing the course of evolution. On February 26, we talked about how fishing practices may be driving the evolution of
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. The heart-stopping news from Stockholm is that the heart never stopsgrowing, that is. Because researchers have shown that the human heart continues to pr
BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. STEVE EMBER: And Im Steve Ember. Today we tell about the beauty and science of orchids, some of natures most interesting flowers. Orchids at the U.S. Botanic Garden
NASA says its next mission to check for life on Mars will have to wait two more years. In the meantime, NASA plans to continue testing its next-generation Mars rover, and it hopes to continue exploring the red planet with the help of the European Sp