单词：srum lysozyme activity determination
单词：srum lysozyme activity determination 相关文章
In 1883, a creative engineer named John Roebling was inspired to build a spectacular[壮观的] bridge connecting New York with Long Island. However bridge-building experts throughout the world thought that this was an impossible feat and told Roebling
英文故事剧
Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes. Scientists have
Scientific American(十二)月
Health Report - With Physical Activity, No Need to Be an Olympian This is the VOA Special English Health Report. Watching the Olympics probably made some people feel a little guilty about not exercising. The truth is, if physical inactivity were a sp
2012年VOA慢速英语(九)月
By Zulima Palacio Washington 25 February 2008 A permanent, live butterfly exhibit recently open at the National Museum of Natural History in Washington. And for the first time, the museum is charging visitors an admission price. But as VOA producer Z
VOA常速英语2008年（二月）
By David McAlary Washington 11 July 2006 Former dancer Ann Smith leads a stretch class at Munson Community Health Clinic in Traverse City New medical research shows that elderly people can prolong their lives without vigorous exercise. The study of
2006年VOA标准英语（七月）
By David McAlary Washington 13 July 2006 We often hear that imagining something will not make it so. But scientists have now overturned that adage, making a science-fiction dream come true. U.S. researchers have shown that a paralyzed patient can us
2006年VOA标准英语（七月）