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Unit 80 Civil Rights Movement against Segregation in the US During and after World War II, challenges to segregation became more common and more successful. Three major factors accounted for this: -- The Great Migration The great migration was the mo
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Alumni work to save buildings designed to educate rural African Americans Susan Logue Koster | Dillwyn, VA 25 February 2010 Watch: Logue Koster Report MP4 Wilbert Dean was moved to save his school when he saw it was being used as a trash dump. Relate
VOA标准英语2010年(二月)
RACHEL MARTIN, HOST: As Americans, we are bound by a collective identity. We see ourselves as independent change makers. We invent things. And we can reinvent ourselves. But that innovation, that desire to keep changing has gone away. That's the cent
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WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
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Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
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WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi
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