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As a little girl growing up in a poor Ohio neighborhood in the 1940's, Gloria Steinem dreamed of becoming a movie star or a dancer. In college, she studied journalism, and when she saw that reporter jobs seemed to go to men, she became a freelance wr
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New Heart Stents Better Than Old Ones, Study Says A heart stent is a mesh tube made of metal that, when inserted into an artery, keeps it open. Stents can be metal only or they can contain medicine released once the stent is in place. These are calle
VOA标准英语2012年(九月)
1. agronomy /ə'ɡrɒnəmɪ/ -- (literally,land management) branch of agriculture dealing with crop production and soil management; husbandry The science of agronomy helps farmers obtain larger and better crops. 农业经济学帮助农民获得更多更
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New Drug Makes Surgery Safer For Patients With Stents Heart stents open blocked arteries and restore blood flow. They can also help support weak arteries and keep them open. Stents are implanted during a common procedure called angioplasty. During th
VOA标准英语2012年(一月)
By Carol Pearson Washington, DC 08 November 2006 watch Heart Stent report Heart stents are lifesaving medical devices that help prevent heart attacks. Most of these stents are coated with various drugs, but mounting data suggest drug-coated stents c
2006年VOA标准英语（十一月)