标签：Genetically 相关文章
Don: Some people seem to need significantly less sleep than others. Yael: Tell me about it. I have a friend who swears that she sleeps only five hours a night. If she's telling the truth, then she must be bionic. She seems to have plenty of energy, a
英语听力文摘 English Digest
This is the VOA Special English Development Report. Scientists are working to develop crop plants that can reduce the amount of water used for agriculture. Almost sixty percent of the world's freshwater withdrawals from rivers, lakes and other water
VOA慢速英语2009年（三）月
AS IT IS 2014-01-26 Meat Demand Leads to Changes in Farming 肉类的大量需求导致了农业生产上的变化 From VOA Learning English, welcome to As It Is. Im Steve Ember in Washington. Today on the program, we visit a banana farm in Uganda an
2014年VOA慢速英语(一)月
Washington state is the countrys largest producer of cherries and blueberries. The states wine industry is second only to Californias in value. But one non-native, nuisance bird is wreaking havoc. [Sound of starling call.] The European starling was b
2016年Scientific American(十)月
Babies benefit from breast-feedingthey have a lower risk of infections, vomiting and diarrhea and less of a chance of later developing adult onset diabetes. And now a study finds that being breast-fed helps protect infants who are genetically predisp
2016年Scientific American(十二)月
Out for the Count 失去知觉之后 If youve ever had major surgery, you probably remember lying down and waking upbut nothing in between. Thanks to the anesthesiologist, during the actual surgery you were out of it: immobilized and insensitive to p
英语听力文摘 English Digest
By Scott Stearns White House 24 October 2006 President Bush says he expects his political party to keep control of both houses of Congress in next month's elections by campaigning on the issues of national security and a strong economy. The presiden
2006年VOA标准英语（十月）
By Selah Hennessy London 21 October 2009 A genetically modified corn plant (file photo) Britain's national academy of science is calling for a multi-billion-dollar research program on global food security. The Royal Society says genetically modified
VOA标准英语2009年(十月)
a butterfly with glowing eyes Believe it or not, Monteiro and her team insert ed a new gene into the butterflys genetic sequenceone taken from a jellyfish . No, I know you're fooling. Actually I'm not. This gene codes for a green florescent protein t
英语听力文摘 English Digest
About six or seven million years ago chimpanzees and humans evolved from a common primate ancestor. Chimps went on to become the relatively small-brained, forest dwelling creatures we know and love. Humans went on to evolve large brains, spread throu
英语听力文摘 English Digest
By Lisa Bryant Paris 24 October 2007 France is hosting a high-level environmental summit Wednesday and Thursday, aimed to turn the country from laggard to leader in the fight against global warming and pollution. From Paris, Lisa Bryant reports the s
2007年VOA常速英语（十月）
Scientists Study Genetic Basis of Autism Scientists have taken another big step toward identifying the genetic flaws which may cause autism, a type of neurological development disorder. In the latest development, laboratory mice have been genetically
VOA标准英语2011年(十月)
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）
By CCTV reporter Su Yuting Cloning is a controversial and decisive issue that has split public opinion regarding its potential benefits versus the ethical issues it raises. In recent years, scientists have been using the cloning of pigs for medical r
CCTV9英语新闻2014年01月
By Paige Kollock Washington, DC 09 February 2006 watch Biotech Crops Genetically modified corn For years, the European Union has banned the sale of genetically modified foods in most European countrie
2006年VOA标准英语（二月）
ARI SHAPIRO, HOST: The U.S. says intellectual property theft by Chinese hackers is growing, and the U.S. will keep naming and shaming suspected cybercriminals. The Chinese are targeting the country's technology - from major corporations, Silicon Vall
2018年NPR美国国家公共电台12月
Is Your Dog Wimpier than Your Cat? 狗比猫更懦弱？ Have you ever noticed that while its pretty easy to tell your dog is sick, its much harder to know how your cat or bird are feeling? Well, before you start asking your dog why it cant be more s
英语听力文摘 English Digest
Toxin-loving Trees 树木能调节气候,保持生态平衡，树木通过光合作用，吸进二氧化碳,吐出氧气,使空气清洁，新鲜。一亩树林放出的氧气够65人呼吸一辈子。树还能防风固沙，涵养水土,吸收各种粉
英语听力文摘 English Digest
The Mystery of Photorespiration 光呼吸作用之谜 光呼吸作用-Photorespiration是所有行光合作用的细胞（该处细胞包括原核生物和真核生物，但并非所有这些细胞都能运行完整的光呼吸）在光照和高氧低二
英语听力文摘 English Digest
Out for the Count 麻醉药是指能使整个机体或机体局部暂时、可逆性失去知觉及痛觉的药物。根据其作用范围可分为全身麻醉药及局部麻醉药，全身麻醉药及局部麻醉药根据其作用特点和给药方式
英语听力文摘 English Digest