单词：carboxylato
羧根基
单词：carboxylato 相关文章
Guitarist Tom Principato has been a mainstay on the Washington, D.C. blues scene for more than 40 years. Tom's new CD was inspired by family, friends and collaborators who helped shape his life on and off the stage. Like many kids growing up in the 1
发表于:2019-01-14 / 阅读(157) / 评论(0)
VOA标准英语2011年(二月)
VOA标准英语2011年(二月)
By Zulima Palacio Washington 08 May 2008 Although the government and researchers halted most clinical trials for an AIDS vaccine, a research institute in Baltimore continues its work on the most deadly virus of our times. Vaccine trials were stopped
发表于:2019-02-04 / 阅读(202) / 评论(0)
VOA标准英语2008年（五月）
VOA标准英语2008年（五月）