Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(52) / 评论(0) 分类 医务英语

By Noel King Khartoum 24 October 2006 Jan Pronk Sudan's decision to expel United Nations envoy Jan Pronk has created a rift within the government. Former southern and Darfuri rebels - now part of Sudan's unity government - say they do not agree with

发表于:2019-01-12 / 阅读(94) / 评论(0) 分类 2006年VOA标准英语(十月)

Africa Pro-Democracy Advocates Evaluate U.S. Conventions For much of American history, political party conventions were spontaneous and unpredictable, with lively debates between delegates over who should be named to the top of the ticket. Today, par

发表于:2019-01-13 / 阅读(104) / 评论(0) 分类 VOA标准英语2012年(九月)

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(67) / 评论(0) 分类 VOA标准英语2012年(三月)

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(53) / 评论(0) 分类 英语新闻

More than a million people remain without electrical power and other normal services nearly five days after Hurricane Ike passed over the Houston-Galveston area. As VOA's Greg Flakus reports from Houston, tensions are growing between various governm

发表于:2019-02-12 / 阅读(126) / 评论(0) 分类 VOA标准英语2008年(九月)