单词：organopolonium
[网络] 有机溴
单词：organopolonium 相关文章
This is the VOA Special English Health Report. A.D.H.D. is attention deficit hyperactivity disorder. Government estimates say three to seven percent of school-age children in the United States have it. Adults can also have it. People with A.D.H.D. ha
发表于:2018-12-16 / 阅读(107) / 评论(0)
2010年VOA慢速英语(五)月
2010年VOA慢速英语(五)月
本期内容： A public inquiry in London reported that Alexander Litvinenko, an ex-KGB officer, was murdered in 2006 by two men working for Russias security service, probably on Vladimir Putins orders. Russia dismissed the report. Mr Litvinenko, a
发表于:2019-03-02 / 阅读(142) / 评论(0)
夏说英语新闻晨读
夏说英语新闻晨读