报告称吸烟或永久性损伤你的遗传物质

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SSS 2011-06-22

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

SSS 2010-03-23

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

英文书摘精选 Why Humans (Not Chimps) Get Cancer为何人类而不是黑猩猩会得癌症?

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

60秒科学:黑烘焙咖啡 可以让胃部更舒服

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

Cross Canadian Ragweed Blends Country

Mary Morningstar Cross Canadian Ragweed formed in 1994, and spent the next eight years building a regional fan base in the southwestern U.S. The Oklahoma-based band released four albums on its own lab

专业术语—中草药成分英汉对照词汇H2

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

专业术语—中草药成分英汉对照词汇M

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

VOA常速英语2007年-Veteran Performers, Newcomers Contribute to Cou

By Mary Morningstar Washington 20 December 2007 Veteran performers and newcomers contributed to the success of Country music in 2007. Although record sales overall continued to fall as digital downloads increased, several Country acts celebrated mult

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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

VOA标准英语2012--Researchers Say Malaria Drug Could Also Treat Cancer

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

美国国家公共电台 NPR Bob Cousy, 90, Still Rues The Assists He Didn't Make To Bill Russell

SCOTT SIMON, HOST: The duo of Bob Cousy and Bill Russell was one of the greatest. They were the Tracy and Hepburn, the Rocky and Apollo of the basketball court. They could anticipate each other's play. They could put themselves into each other's mind

经济学人69:外因遗传与压力 新生儿蓝调曲

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

VOA标准英语2013--生物钟提供衰老的线索

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

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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

原版英语对话1000个:182 Girl Scouts

When I was eight years old I went to Girl Scout camp with my best friend Lauren. It was for two weeks and it was in the middle of July so it was really hot. We had no air conditioning. We actually slept in Tee Pees like the native Americans. It was a

VOA标准英语2010年-Burkina Cloth Reveals Paradoxes in Cou

March 8 is International Women's Day, a national holiday in Burkina Faso. One way of celebrating is by making new clothes from Women's Day cloth that is designed with a new pattern every year. Burkina Faso is Africa's largest cotton producer, but the

VOA标准英语2008年-Former Mauritanian General Takes Over State Cou

Hours after the Mauritanian president fired top military officials on Wednesday morning, three of the fired officials seized the presidential palace and established a new state council. They have announced that President Sidi Mohamed Ould Cheikh Abd

A wet sunday in a countr inn

A wet Sunday in a country inn! Whoever has had the luck to experience one can alone judge of my situation. The rain pattered against the casements; the bells tolled for church with a melancholy sound. I went to the windows in quest of something to am