报告称吸烟或永久性损伤你的遗传物质

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

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

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

AGRICULTURE REPORT - Restrictions on Methyl Bromide

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

Pentagon says Iranian fighter jet attacks U.S. drone

Pentagon says Iranian fighter jet attacks U.S. drone WASHINGTON, Nov. 8 (Xinhua) -- Iranian fighter jet has attacked a U.S. drone but missed, so the unmanned American aircraft suffered no damage and returned safely to base, the U.S. Defense Departmen

Study: Loss of Ozone Slows

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2013--US Drone Strikes Under Scrutiny

US Drone Strikes Under Scrutiny Unmanned drones are being used with increasing frequency in fighting terrorist groups like al-Qaida. A recent analysis by the New America Foundation estimated drone strikes in Pakistan and Yemen since 2004 have killed

美国国家公共电台 NPR The Rise Of The Drone, And The Thorny Questions That Have Followed

The Rise Of The Drone, And The Thorny Questions That Have Followed play pause stop mute unmute max volume repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin.

2017年CRI SF Express tests emergency drone delivery

Chinese logistics firm SF Express has tested the delivery of emergency supplies through the use of a large drone, reports thepaper.cn. A domestic-developed large drone delivered equipment which would have been needed for the quick repair of communica

2015年CRI Chinese Drone Maker SZ DJI Opens First Retail Store

Reporter: As the market for commercial drones goes more mainstream, the industry's major players are trying to attract a wider range of consumers. Michael Perry, Director of Strategic Partnerships with DJI, says the 800-square-metre shop aims to help

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

Israel downed unmanned drone in south: IDF spokesperson

Israel downed unmanned drone in south: IDF spokesperson JERUSALEM, Oct. 6 (Xinhua) -- The Israeli air force has on Saturday struck down an unmanned aircraft in the Israeli airspace, an Israel Defense Forces (IDF) spokesperson told Xinhua. But the spo

Iran Shows Footage of Purported US Drone

Iranian state television on Thursday released the first images of what it said was a U.S. unmanned reconnaissance drone downed on Sunday along Iran's eastern border after it made a brief incursion into its airspace. The footage shows Iranian military

A California company has unveiled a tiny flying drone

A California company that makes unmanned drone aircraft for the U.S. military has unveiled a tiny flying drone that looks like a hummingbird(蜂鸟). The airborne spy is part of a new kind of military technology that also has civilian uses. Several y

NE China to set up two drone bases for marine surveillance

NE China to set up two drone bases for marine surveillance SHENYANG, Oct. 20 (Xinhua) -- Two drone bases will be established in northeast China's Liaoning Province for real time surveillance on coastal waters, local authorities said Saturday. One of

美国国家公共电台 NPR How To Stop A Drone? There's No Good Answer

SCOTT SIMON, HOST: A small drone sparked enormous disruptions at London's Gatwick Airport this week. Thousands of passengers were grounded as police struggled to stop the drone or drones from flying into restricted airspace. Police have arrested two