标签：Vitamin C and DNA 相关文章
California Fire Victims Families Asked to Give DNA Officials in Northern California say a deadly wildfire that began two weeks ago is almost completely contained. 加州北部的工作人员表示，2周前烧起来的一场致命大火基本上已经全
2018年VOA慢速英语(十一)月
Our eyes are two of the most important things in our lives. We use them every second we are awake. They help keep us safe, recognize friends, and select things we like. It is possible to lead happy and healthy lives without being able to see, but it
常春藤生活英语
[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:05.10]1996 [00:06.69]Vitamins are organic compounds necessary [00:09.52]in small amounts in the diet [00:11.34]for the normal growth and maintenance [00:13.45]of life of animals, including man
历年考研英语完型填空
The way we sample much of the world's oceans, to see what's living down there, is pretty basic: Ask fishermen. Or just stick a net down there, and examine what we catch. Neither method is ideal. Because you basically catch the fish and kill them. Phi
2016年Scientific American(十一)月
DNA Points to Multiple Migrations into the Americas 美洲多次殖民迁移之谜 For more than ten thousand years, Alaska Native and Canadian First Nations people have lived along the Northwest coast of North America. Now, ancient remains have prov
2017年Scientific American(六)月
You might get tickets going to a clinic to get a DNA test or going on a daytime talk show. But now in New York City, you can just walk up to an RV called 揥ho抯 your daddy?truck to get your DNA analyzed. Eyewitness reporter Carolina Leid has more o
万花筒2012年
The Minerals Management Service and the US Coast Guard have launched the Marine Board of Investigation into the Deepwater Horizon oil rig explosion. NPR's Debbie Elliott says the board is hearing testimony from witnesses of the April 20th incident. T
2010年NPR美国国家公共电台5月
A proposed breeding program for the critically endangered Siamese crocodile received a significant boost this month with the news that 35 crocodiles at a wildlife rescue center in Cambodia are purebred Siamese. Robert Carmichael | Phnom Penh 20 Nove
VOA标准英语2009年(十一月)
Scientists are using DNA to trace illegal ivory from slaughtered elephants to its countries of origin in an effort to nab poachers. Researchers are trying to combat the multi-billion dollar criminal enterprise at its source. A poached elephant Since
VOA标准英语2009年(七月)
用DNA测试确定大象盗猎地点 Theres a new weapon in the fight to stop elephant poaching: genetics. DNA testing, which is frequently used to solve crimes, has pinpointed where most of Africas elephants are being slaughtered. 现在有了对付大
VOA标准英语2015年(十二月)
ARI SHAPIRO, HOST: For the first time, scientists have altered the DNA in human embryos to make a fundamental discovery about early human development. Scientists say this proves that modifying genes and human embryos can reveal powerful insights into
2017年NPR美国国家公共电台9月
Breaking Taboo, Swedish Scientist Seeks To Edit DNA Of Healthy Human Embryos play pause stop mute unmute max volume 00:0004:12repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or updat
2016年NPR美国国家公共电台9月
DNA analysis is a staple of crime scenesand crime shows, like HBO's The Night of or the old standby, CSI: We just need to get this to the DNA lab, confirm it's the victim's blood. And then, case closed. And it's not just for crime: DNA sequencing als
2016年Scientific American(九)月
How To Prevent Seasonal Mood Disorder When the winter season arrives, the days begin to get shorter and shorter. During seasonal shifts, it is not uncommon for people to experience alterations in their moods. Commonly, negative feelings and attitudes
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Red bell peppers 红灯笼辣椒 When it comes to vitamin C, one red bell pepper serves up more than twice the vitamin C you need in a day. Vitamin C keeps your skin smooth and healthy by helping you make more collagen, which is essential for firm, s
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今天9时42分，立夏至。 ①24节气中的第7个节气，夏天的开始; ②按气候学标准，此时节我国只有福州到南岭一线以南真正入夏; ③立夏后，天气逐渐变热，易让人烦躁，需调节情绪，平心静气
英语口语
You need to take proper care of your eyes to maintain good eyesight. There are few fundamental rules that have to be done for good eye care. As you know very well that exposure to sun is very bad for the eyes. Similarly, if you use computer for long
英语小短文
Insects Donate DNA to Unrelated Bugs 昆虫捐献DNA给无关的虫类 You can thank your parents for your DNA. Because humans share genes through sexual reproduction, passing DNA from parent to child. It's known as the 'vertical transfer' of DNA. No
2018年科学美国人2月
It takes more than shampoo and conditioner to maintain the charm of shiny and manageable hair. See what you should eat to keep those tresses healthy, alluring and strong. 为了维持有光泽且易打理的头发，仅仅用洗发水和护发素是不
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1.Swap processed food for fresh food 将加工食品换成新鲜食物 When youre tired, its easy to reach for that can of soup for a quick fix. However, processed foods include unnecessary ingredients like sugars, unhealthy fats , high sodium conten
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