单词：genetically effective population size
单词：genetically effective population size 相关文章
BY STEPHEN R .COVEEY The first habit is 1)proactivity. Be proactive. The word proactivity is fairly common in management literature, but you won't find it in the dictionary. It means more than merely
疯狂英语2001年
Two things I think really were what it came down to for many: 众多原因中，我就想谈两点： a) Someone that big who's that athletic. Dude is the size of Dwight Howard. a)这么大块头的人还有这么强的运动能力。他的身板都赶
英语新闻
First up, it's been almost half a century since a storm this strong threatened southeastern China. Its name is Typhoon Meranti. It grew from the equivalent of a category one hurricane, to a category five in just a days time. It was labeled a super ty
CNN美国有线新闻2016年9月
But first: Lyme disease is on the rise. It's being spread by a growing tick population and has become a particular problem for the Massachusetts islands of Nantucket and Martha's Vineyard. But an MIT scientist thinks he might have a long-term solutio
PBS访谈健康系列
Australia is a unique country. It's the world's largest island, but it's also the world's smallest continent. In fact, Australia is the only country that is also a continent. It's about the size of th
赖世雄初级美国英语
One of the concerns about working with genetically modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., researchers report a large population of GM crops beyond t
60秒科学
By Steve Herman New Delhi 05 December 2007 Even as India emerges as one of the world's major economies, it is still struggling to achieve widespread literacy among its people, and officials say there is a massive shortage of skilled labor. VOA's Stev
VOA常速英语2007年（十二月）
By Barry Unger Washington, DC 03 February 2006 watch Bird Flu Research report There are two new, experimental vaccines against bird flu that both make use of a cold virus and that both may work even i
2006年VOA标准英语（二月）
One of the concerns about working with genetically modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., researchers report a large population of GM crops beyond t
Scientific American(八)月
Capital 首都 The capital of a country is the city where its government meets. 一个国家的首都就是这个国家政府的所在地。 The capital of the U,S,A. is not New York City, but Washington, D.C. 美国的首都不是纽约，而是华盛
与美国小学生一起学英文第5册
By Zulima Palacio Washington, D.C. 15 December 2006 watch Malaria Summit report President Bush and his wife Laura hosted a White House summit on Malaria Thursday. The conference brought together health ministers from countries affected by malaria, h
2006年VOA标准英语（十二月）
Stem Cell Therapy Effective Against HIV Virus in Mice The actual stem cells were injected in my arm, said Diana Souza. Diana Souza says stem cell therapy helped restore full use of her severely fractured arm. It is a miracle. It does work. And I have
VOA标准英语2012年(五月)
A group of scientists has unveiled what they say is the most comprehensive study ever of African genes which they say gives new insight into the origins of humans. The genetic study, a compilation of two big studies, confirms theories that modern hu
VOA标准英语2009年(五月)
写作题目 In many cities and all over the world, there is a serious shortage of water supplies. What are the causes of and solutions to the scarcity of water resource? Write an essay of about 400 words. You should supply an appropriate title for y
英语作文
Todd: Hey, Akane, I was reading in the paper that China is doing research on genetically modified foods and is considering it. The United States is for using genetically modified foods, (I see) but Europe is against it. (Oh, right) So you're from Can
英语访谈对话
By Phil Mercer Sydney 01 April 2008 Researchers in Australia say a Tasmanian devil called Cedric could hold the key to the survival of the embattled species. The world's largest marsupial carnivore is facing extinction because of a mystery facial can
VOA常速英语2008年（四月）
Todd: Hey, Akane, I was reading in the paper that China is doing research on genetically modified foods and is considering it. The United States is for using genetically modified foods, (I see) but Europe is against it. (Oh, right) So you're from Can
原版英语对话1000个
Wild Songbirds Can Pick Up New Tunes Only a few kinds of animals are known to learn their vocalizations from listening to others. Us, of course. Elephants. Bats. Cetaceanswhales and dolphins. Pinnipedswalruses, seals and sea lions. And parrots, hummi
2018年科学美国人10月
You might think the U.S. is the most obese nation in the world - but if you do, you are wrong. 如果你一直以为美国是世界上肥胖人口最多的国家，那你可就错了。 Soaring rates of obesity in the Pacific Islands, nations in the
英语新闻
By David McAlary Washington 05 April 2007 Scientists have discovered a genetic reason why some dogs are small and others big. They say the finding has implications beyond canine size, since the work applies to the study of other complex genetic trait
2007年VOA标准英语（四月）