单词：spermatotoxin
单词：spermatotoxin 相关文章
Medical Microbiology医学微生物学 adenovirus 腺病毒 adsorption 吸附 aerobe 需氧菌 aflatoxin 黄曲霉毒素 airborne transmission 空气传播 amantadine 金刚烷胺 anaerobe 厌氧菌 anthrax 炭疽 antigenic drift 抗原漂移,抗原转
医务英语
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As long as there have been mice, people have sought a better mousetrap. And since we figured out that bacteria can make us sick, weve searched for better
Scientific American(十)月
Don: All right, Yael, you're a moth. And mating for you is a big deal because it takes eight or nine hours. So the last thing you want is for some predator to interrupt you and your mate in the act. Yael: I'm guessing that's true not just for moths.
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The impact of a famine being captured by the genes in the eggs and sperm, and a memory of this event was being carried forward to affect the grandchildren, generations later. We are changing the view
基因外遗传现象
D Dahurian Rhododendron Leaf P.E 满山红提取物 Daidzein 大豆甙元 Daidzin 大豆甙 Dandelion P.E 蒲公英提取物 Daphnetin 瑞香素 Daphnin 瑞香甙 Daucosterol 胡萝卜甙 Dauricine 蝙蝠
医务英语
This is Scientific Americans 60-Second Science, I am Cynthia Graber .This will just take a minute. How can we improve engines, inhalers and fire extinguishers? Maybe by copying a beetle. The bombardier beetle's name might scare off predators if they
Scientific American(四)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. For years, scientists and physicians have been up in arms about the rise in antibiotic resistance. Seems that many bacteria, devious buggers that they ar
Scientific American(一)月
At one time or other, someone has probably told you its written all over your face. Thats because your emotions can influence your expressions. Well, a study in the journal Psychological Science suggests that the reverse is also true: that the look o
Scientific American(二)月
Guitarist Tom Principato has been a mainstay on the Washington, D.C. blues scene for more than 40 years. Tom's new CD was inspired by family, friends and collaborators who helped shape his life on and off the stage. Like many kids growing up in the 1
VOA标准英语2011年(二月)
The tailings ponds are the largest toxic impoundments on the planet. 那些残渣池是世上最大的毒性蓄水池 Oil sands-r rather I should say tar sands-oil sands is a P.R.-created term， 油砂－或者我该称它为沥青砂－油砂是公关
TED演讲商业篇
Don: All right, Yael, you're a moth. And mating for you is a big deal because it takes eight or nine hours. So the last thing you want is for some predator to interrupt you and your mate in the act. Yael: I'm guessing that's true not just for moths.
英语听力文摘 English Digest
Science and Technolgy 科技 Arthritis and botulinum toxin 关节炎与肉毒杆菌毒素 Something to celebrate 值得庆贺 Botulinum toxin may help relieve chronic pain 肉毒杆菌毒素也许能够帮助缓解慢性疾病的痛苦 ARTHRITIS is t
经济学人科技系列
Scheele's one notable shortcoming was a curious insistence on tasting a little of everything he worked with, including such notoriously disagreeable substances as mercury, prussic acid (another of his discoveries), and hydrocyanic acida compound so f
万物简史
By Zulima Palacio Washington 08 May 2008 Although the government and researchers halted most clinical trials for an AIDS vaccine, a research institute in Baltimore continues its work on the most deadly virus of our times. Vaccine trials were stopped
VOA标准英语2008年（五月）
Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they
英语新闻
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
BEIJING, July 23 (Xinhua) -- A Chinese dairy company has been ordered to suspend production after its infant formula products were found to contain the carcinogen aflatoxin, the nation's quality watchdog said Monday. Excessive amounts of aflatoxin we
英语新闻
1.An army scientist committed suicide before federal prosecutors could charge him with mailing anthrax-laced letters after the 9/11 attacks. Authorities say that the letters may have been part of a warped plan by Bruce Ivins to test a vaccine for th
美联社新闻一分钟2008年(八)月
Science and technology 科学技术 Arthritis and botulinum toxin 关节炎与肉毒杆菌毒素 Something to celebrate 值得庆贺 Botulinum toxin may help relieve chronic pain 肉毒杆菌毒素也许能够帮助缓解慢性疾病的痛苦 An infl
经济学人科技系列