单词：
单词： 相关文章
This is Scientific American's 60-Second Science. I'm Chirisopher Intagliata, got a minute? But mum, that's not fair! sound familiar? Even as children we hate getting gypped, whether it's fewer slices of pizza or lousy presents from Santa. More surpri
Scientific American(四)月
King Tut's Tough Life New analysis of the mummy of King Tut, published in the Journal of the American Medical Association, shows that the boy king had severe bone disease and malaria. Christopher Intagliata reports The Journal of the American Medical
60秒科学
By Barry Unger Washington, DC 03 February 2006 watch Bird Flu Research report There are two new, experimental vaccines against bird flu that both make use of a cold virus and that both may work even i
2006年VOA标准英语（二月）
Student Addicts Live, Recover Together at US University Program At Rutgers University, one student was scoring in a game of virtual soccer. It was a small victory in one of two recovery dorms. The 38 students in the so-called Recovery House there see
VOA标准英语2012年(五月)
青霉素类 青霉素(G) Penicillin(G) Benzylpenicillin, 苄青霉素, 盘尼西林 青霉素V Penicillin V Phenoxymethylpenicillin, Blinvan, Ospen, 苯氧甲基青霉素 苄星青霉素 Benzathine Penicillin 长效西林, 长效青霉素, 比西林, LPG, 苄星青 氨苄西林 Ampicillin 安比西林
英文语法词汇