单词:hydroxyethyl group
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The Reading Group Part 1 This programme was first broadcast in 2002. This is not an accurate word-for-word transcript of the programme. ANNOUNCER: Youre listening to The Reading Group from the BBC World Service. In this series we bring together liste
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
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
IN THE NEWS - East Asian Leaders Form New Group to Improve Area's Future By Nancy Steinbach Broadcast: Saturday, December 17, 2005 I'm Steve Ember with IN THE NEWS in VOA Special English. Two meetings
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
DEVELOPMENT REPORT - U.S. Group Fights to Free Modern-Day Slaves By Jill Moss Broadcast: Monday, March 08, 2004 This is Robert Cohen with the VOA Special English Development Report. American officials
By Nick Wadhams Nairobi 27 August 2007 An Ethiopian human rights group is demanding that the United States and other international donors monitor the food and financial aid they give to Ethiopia for its impoverished Ogaden region. As Nick Wadhams rep
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
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
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
In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾
By Nick Wadhams Nairobi 20 August 2007 Doctor's from the Ugandan peacekeeping force in Somalia examine a malnourished boy at their field hospital at the Halane Camp just south of Mogadishu The medical group Doctors Without Borders is reporting a dras
By Nick Wadhams Nairobi 10 December 2007 An Eritrean human rights group is accusing the governments of Sudan and Eritrea of working together to round up and deport Eritreans who have sought refuge from Eritrea's authoritarian government. Nick Wadhams
By Peta Thornycroft Southern Africa 11 October 2007 A group of 12 Zimbabwe women who say they regularly have been mistreated in police custody have produced an interim report they say documents shocking statistics of violence against members of their
How to Motivate a Group I like to focus on receptive and expressive intelligence, which I call CQ. A healthy dose of CQ is essential when being in charge of a group or team because the task of motivating them often falls to you. This may seem unfair.
The head of the International Airways Volcano Watch group, Peter Lechner who lives in Wellington, said today that their group has been warning about volcanoes for the last 10 years or more. There are nine volcanic ash warning centres around the world
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
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
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
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