Janice Lieberman: America is a cell phone nation, dialing, texting and ringing, nonstop. (Inaudible) Ding? Yeah? Hello? Janice Lieberman: Although we can't live without our cell phones, most people do

发表于:2018-12-11 / 阅读(49) / 评论(0) 分类 万花筒2006年

Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many

发表于:2018-12-15 / 阅读(40) / 评论(0) 分类 VOA慢速英语2008年(六)月

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(107) / 评论(0) 分类 英语课程学习计划和讲义

By Claudia Blume Hong Kong 05 January 2006 Scientists in Australia have discovered a stem cell that is expected to provide clues about how breast cancer develops, and how cancer cells evade current th

发表于:2019-01-11 / 阅读(98) / 评论(0) 分类 2006年VOA标准英语(一月)

HEALTH REPORT - Cell Phones Linked to Benign Tumors By Cynthia Kirk Broadcast: Wednesday, November 03, 2004 This is Gwen Outen with the VOA Special English Health Report. A Swedish study suggests that

发表于:2019-01-30 / 阅读(56) / 评论(0) 分类 健康与经济

HEALTH REPORT - Study Shows No Link Between Cell Phones and Rare Tumor By Cynthia Kirk Broadcast: Wednesday, September 07, 2005 I'm Barbara Klein with the VOA Special English Health Report. New resear

发表于:2019-01-30 / 阅读(67) / 评论(0) 分类 健康与经济