单词：polyalkylene sulfone
单词：polyalkylene sulfone 相关文章
We often need to tell others what someone else said. There are two ways to do this. One is to say the same words and use quotation marks. That is direct speech. The other method is to summarize, or tell about what someone said. This is called reporte
2018年VOA慢速英语(二)月
Education Report - UNICEF has reported good news about education in Somalia From VOA Learning English, this is the Education Report. UNICEF, the United Nations Childrens Fund has reported good news about education in two regions of Somalia. The two -
2013年VOA慢速英语(四)月
They Say That Reported Speech is Easy We often need to tell others what someone else said. There are two ways to do this. One is to say the same words and use quotation marks. That is direct speech. The other method is to summarize, or tell about wha
2016年VOA慢速英语(四)月
By Barry Newhouse Irbil 29 May 2007 Two car bombs in the Iraqi capital have killed at least 40 people and wounded more than 100 others. The U.S. military also reported 10 American soldiers were killed Monday in bomb attacks and a helicopter crash. VO
2007年VOA标准英语（五月）
Reported US Surveillance of Pakistans Nuclear Program Raises Questions WASHINGTON A recent Washington Post article reporting that the United States has stepped up surveillance of Pakistan's nuclear program has once again raised questions about the bi
VOA常速英语2013年(九月)
BERLIN, June 14 (Xinhua) -- A two-year-old boy became the first child to be killed by the deadly E. coli in Germany on Tuesday, officials said. To date, the terrifying EHEC infection has claimed 36 lives in Germany and one in Sweden. The child, from
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