单词：Derris hancei
单词：Derris hancei 相关文章
Good Evening: This a special night for me. Exactly three years ago, on July 15, 1976, I accepted the nomination of my party to run for President of the United States. I promised you a President who is not isolated from the people, who feels your pai
名人演讲
Online Classes May Force Changes at Universities This is pretty amazing, said the University of Virginia's David Evans, teaching an online introduction to Computer Science. Online classes are now taught by many top universities and offer everything f
VOA标准英语2013年(六月)
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
New Procedures Improve Chances for Trauma Victims At one of the largest trauma centers in the United States, a multi-disciplinary team of doctors and nurses works quickly to save the life of a 60-year-old man suffering from multiple stab wounds. Dr.
VOA标准英语2013年(四月)
By Carol Pearson Washington, DC 19 January 2006 watch Dementia Exercise report Experts estimate that more than 24 million people worldwide suffer from dementia, a loss of mental functions including me
2006年VOA标准英语（一月）
Todd: Hey, Michael, I just met your wife. She's a really nice woman. Really friendly. Mike: Yeah. yeah. We met a long time ago. We've been married a lot of years, now. Todd: How did you meet actually? Mike: Oh, gosh, we back when we were both student
原版英语对话1000个