单词：mineral acidity and alkalinity
单词：mineral acidity and alkalinity 相关文章
By David Lewis A natural resources watchdog group issued a report Tuesday warning that smuggling and corruption are costing the Democratic Republic of Congo millions of dollars a month in lost revenue
VOA2004（下）--世界经济
Study: Ocean Acidity Exceeds Natural Norms New research suggests an overload of carbon dioxide in the oceans is posing a serious threat to marine life, food security and tourism. While most CO2 emissions from automobiles, buildings and factories go i
VOA标准英语2012年(一月)
Harnessing the Mineral Wealth of Poor Countries 新方针指导贫穷国家正确利用其丰富矿藏 Developing countries with potential mineral riches have often fallen prey to corruption and mismanagement. As a result, theyve failed to benefit fr
VOA标准英语2012年(二月)
Cameroon's new mineral research center will begin operations this year. South Korean mining researchers are making trips to Cameroon to determine the overall cost of the facility, to be located in the capital, Yaounde. They say the center will cost s
VOA标准英语2011年(二月)
Leaders 社论 Climate change 气候变化 The temperature rises 温度上升 A new report produces a mixture of alarm and apathy 新报告敲响警钟，对此有人惊慌，有人冷漠 For decades scientists have warned that rising atmospheric con
经济学人综合
我们常常会去一些老外和葡萄酒共存的社交场合，比如公司宴请、Party等等。与老外聊天，该如何打开话闸？据我个人观察，我们手中的那一杯葡萄酒是个很开门见山的话题。但是，要和老外聊
实用英语