单词：database subschema
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If all you have is a hammer, they say that everything looks like a nail. But when you use that hammer, it looks like you are arm to your brain anyway. A
Scientific American(六)月
Topics: The Jonestown Massacre; Square Dancing; perspective versus prospective versus prospect; scheme versus schema; heart condition Words: massacre to be affiliated with temple charismatic to owe (someone) (something) to be blackmailed commune to b
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By Deborah Block Washington, DC 24 January 2006 watch Bird Flu Database report A computer database in the United States is helping researchers find a human vaccine for the bird flu virus -- a disease
2006年VOA标准英语（一月）
Tools Are Body Parts to Brain In a report in the journal Current Biology, researchers claim that the brain interprets a tool, such as a hammer, as a temporary extension of your physical body. Karen Hopkin reports [The following is an exact transcrip
60秒科学
BEIJING, Sept. 26 (Xinhuanet) -- Fu Ming'ai was reunited with his family on Sunday after 22 years. He is one of the more than 1,400 abducted children who were helped by a national DNA database, which helps match trafficked children and their parents.
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The director of the United Nations Industrial Development Organization has met with Kenyan finance officials to discuss the launch an African-wide database designed to help governments promote investment in their countries. The database contains info
英语新闻