单词：borophenol
单词：borophenol 相关文章
This is the VOA Special English Education Report. Most American schools have boys and girls in the same classroom. But a public high school in the small, rural town of Boonsboro, Maryland, offers a special program. Top students in the ninth and tenth
2010年VOA慢速英语(十二)月
Economy, Post Office Woes Force Iowa Town off Map The United States Postal Service is facing unprecedented financial losses. Postmaster General Patrick Donahoe recently told lawmakers his agency needed government intervention by the end of the year t
VOA标准英语2011年(九月)
Legislation 法规 A: Has your company been affected much by government legislation? A:政府法规对你们公司影响大吗？ B: Yes, we have. We've had to clean up our production process a lot to meet tough government standards. B:是。为了严格
职业技术英语口语
In public high schools across America, large classes containing a mix of both boys and girls are the norm. However, in a move that's drawing high marks from students, one public school in Maryland has decided to buck that tradition. Class experimentA
VOA标准英语2010年(十一)月
BRUSSELS, May 31 (Xinhua) -- Baby bottles containing the substance Bisphenol A (BPA) would have to be pulled from the shelves across the European Union (EU) starting from Wednesday, in a milestone move to better protect the health of EU citizens, an
英语新闻
Tea has complex compounds called polyphenols which are believed to help the arteries to relax or dilate, thus enabling a smoother flow of blood. 茶中含有一种叫多酚的复杂混合物。这种物质据信能帮助放松或扩张动脉，从而使
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