单词：n-methyl group
单词：n-methyl group 相关文章
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
英语讨论
AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n
2016年VOA慢速英语(十)月
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Scientific American(六)月
Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting
Scientific American(三)月
You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t
初学者听力文摘精选
Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented
60秒科学
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
教育与新闻
M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物（舞茸提取物） Malonyl Oleanolic acid Hemi
医务英语
AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals
农业与发展
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
农业与发展
By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the
VOA2003（下）-环境与健康
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
2007年VOA标准英语（八月）
By Michael Bowman Washington 27 May 2008 A private U.S.-based philanthropic group has announced it will spend more than half a billion dollars to fund groundbreaking medical research in a multitude of fields. From Washington, VOA's Michael Bowman rep
VOA标准英语2008年（五月）
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
经济学人科技系列
Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod
VOA常速英语2013年(十月)
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
2007年VOA标准英语（八月）
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
VOA常速英语2007年（十二月）
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
2007年VOA常速英语（十月）
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.
阅读空间
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
新西兰英语