单词：aimethyl sulfate
单词：aimethyl sulfate 相关文章
说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 aim He aimed the gun at the enemy off
每日攻克5词
AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s
2014年VOA慢速英语(五)月
美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related
VOA双语新闻 2014年1月
By Bernie Bernard The term
VOA2004（下）--文化艺术
IN THE NEWS - Senators Aim to Avoid Delays Over Bush's Court Nominees By Jerilyn Watson Broadcast: Saturday, May 21, 2005 I'm Steve Ember with IN THE NEWS, in VOA Special English. Jimmy Stewart in 'Mr
教育与新闻
New Rules Aim to Improve US Food Safety From VOA Learning English, this is the Agriculture Report in Special English. Each year, bad food sickens about one in six Americans. Proposed new rules aim to improve food safety. Officials say the changes cou
2013年VOA慢速英语(五)月
Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6
VOA标准英语2014年(一月)
One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds
白领英语晨读
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
世界各地新闻集锦
By Parke Brewer Phoenix 02 February 2008 This year's U.S. National Football League Championship game, The Super Bowl, is expected to be one of the most watched in history. That is because for only the second time in 42 Super Bowls, a team comes in un
VOA常速英语2008年（二月）
Talks aimed at resolving tensions between Georgia and Russia after this summer's brief war get underway in Geneva Wednesday. The one-day meeting is being held under the auspices of the United Nations, the European Union and the Organization for Secu
VOA标准英语2008年（十月）
TEHRAN, Feb. 14 (Xinhua) -- Turkey and Iran aim to boost trade and political ties, the two countries' leaders said Monday during Turkish President Abdullah Gul's visit to Iran. Accompanied by(连同) a large delegation of ministers and businessmen, G
英语新闻
Researchers in Sydney are leading a new international effort to make desalination more environmentally friendly. Current techniques tend to use excessive amounts of energy or are heavily reliant on chemicals. The University of Technology in Sydney is
英语新闻
On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上，公司的历史没有提及铅──也没有提
万物简史
By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo
万物简史
Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions
万物简史
ULAN BATOR, Dec. 1 (Xinhua) -- Mongolia will continue to curb the spread of HIV and strive to maintain a low prevalence of the AIDS epidemic, a government official said Thursday. Gansukh Battulga, an official with the National Committee on AIDS, told
英语新闻
If you were going to a restaurant and wanted a healthier option, 如果你去饭店，你想吃得健康一点， which would you choose, grilled or fried chicken? 你会选择哪种食品呢，烤鸡还是炸鸡？ Now most people would answer grill
TED演讲教育篇
We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S
英语时差8，16
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