单词：sodium lead thiosulfate
单词：sodium lead thiosulfate 相关文章
By Lisa Schlein Geneva 30 September 2007 The World Heart Federation says heart disease and stroke are the world's largest killers, claiming 17.5 million lives a year. Marking World Heart Day, the Federation says knowing the risk factors and leading a
2007年VOA标准英语（九月）
By Catherine Maddux Washington 19 December 2006 A recent report issued by the Council on Foreign Relations says unresolved tensions between Ethiopia and Eritrea could inflame an already dangerous situation in neighboring Somalia. VOA's Catherine Mad
2006年VOA标准英语（十二月）
Salt is believed to be the single most harmful thing in our food, contributing to high blood pressure For years doctors have been telling patients with high blood pressure to cut down on the amount of salt in their diet. Now a prestigious panel of ex
VOA标准英语2010年(四)月
Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d
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RIO DE JANEIRO, May 26 (Xinhua) -- Second-half wonder goals from Fabricio and Datolo earned Internacional a 3-3 draw against Flamengo in the Brazilian championship on Saturday. An Airton strike and Ronaldinho penalty had given Flamengo a 2-0 lead aft
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First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。
《海底两万里》中英双语有声读物