单词：demethylchlortetracycline(DMCT)
单词：demethylchlortetracycline(DMCT) 相关文章
O: how is everything going with your girlfriend? N: didnt I tell you? Its over! O: oh, I am sorry to hear that. I didt know that you had split up. What happened? N: it was a few things. The first thing that happened was that we were supposed to go ou
生活英语情景口语
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
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Evidence mounts that ancient Nubian brewers purposely made beer so that it contained a dose of antibiotic tetracycline. Christopher Intagliata reports 有证据表明努比亚的啤酒制造者故意在啤酒中加入抗菌四环素。 In 1980, a sci
60秒科学
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
四环素类 美他环素 Methacycline 飞梭霉素, 甲烯土霉素, 甲烯环素 米诺环素 Minocycline 康尼, 二甲胺四环素, 美满霉素, 二甲胺四环素，Vectrin, Minomax, Minocin, Ul
医务英语
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
In 1980, a scientist looking at bone fragments under an ultraviolet microscope noticed the bones were glowing greena hallmark of the antibiotic tetracycline. The drug latches onto calcium and gets deposited in bone. Nothing unusual. Except these bone
Scientific American(九)月
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
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)
RIO DE JANEIRO, July 18 (Xinhua) -- American Chris Weidman wants to challenge Brazilian champion Anderson Silva for the UFC world middleweight title, local media reported Wednesday. The 28-year-old continued his undefeated UFC record last week by def
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By Jordan Davis Dakar 03 December 2006 Islamist Moderate Party supporters attend a late meeting, 17 Nov 2006 in Nouakchott Second round legislative elections are under way in Mauritania. The vote is seen as a key step in the country's return to civi
2006年VOA标准英语（十二月）
BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E
英语新闻
By David Byrd Rio de Janeiro, Brazil 17 July 2007 They come from as far away as Hong Kong, Vietnam, the Philippines, and Laos, but they compete for the United States and share a passion for the sport of badminton. VOA's David Byrd filed this report o
2007年VOA标准英语（七月）
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele
VOA标准英语2010年(一月)
China has scrambled fighter jets, after two Japanese jets entered Chinas airspace in the East China Sea, where it was holding joint maritime drills with Russia. The Defense Ministry said on its website that the Japanese aircraft entered the zone on S
CCTV9英语新闻2014年05月