单词：tissue culture vaccine
单词：tissue culture vaccine 相关文章
Broadcast: Jan 6, 2003 By Jill Moss This is the VOA Special English Development Report. Vaccines are special medicines to prevent diseases. They are usually given to children by injection. They have p
VOA2003（上）-健康资讯
00:05.00]5 有用的东西 [00:10.00]A What things do Mary and Peter need to lay the tables? [00:16.78]Mary和Peter要摆什么在桌子上？ [00:23.56]Mary needs some knives and forks. [00:27.83]Mary要摆一些刀子和叉子。 [00:32.10]She also needs some plates. [00:3
小学英语深圳双语版六年级
When humans have a heart attack, heart muscles die after being cut off from their blood supply. But what if the heart could grow new muscle to replace the dead tissue? Some amphibians can regrow body parts, even entire limbs. But humans and other hig
VOA标准英语2011年(三月)
[00:00.00]Lesson Nine.Listen. [00:17.29]What's this? It's a tissue. [00:23.35]Thanks.Susan's beautiful. [00:29.91]You're beautiufl too.Carol. [00:34.77]Some pronunciation practive.Repeat. [00:40.96]what's this what's that [00:53.81]these what're thes
洪恩环境英语
unit 45 Dialog 1 What's wrong? My girlfriend just broke up with me. I can't believe it. I'm sorry, can I do anything for you? Bring me a box of tissue, I'm crying all over my self. Here you go I can't believe it, this is the worst thing that ever ha
英语会话速成
[00:05.75]Last month, scientists announced that they recorded the first detailed maps [00:13.06]of the development of a child's brain between the ages of three and fifteen. [00:19.98]Scientists at the University of California at Los Angeles School of
美国英语听力80篇
[00:00.00] MODULE 5 MY HOUSE [00:04.99]Unit 13 Come In [00:09.64]New words and Expressions [00:13.90]come [00:15.83]来 [00:17.76]come in [00:19.53]进来 [00:21.29]watch [00:23.21]看 [00:25.13]living room [00:27.26]客厅 [00:29.39]sit [00:31.27]坐
广州小学三年级 (下) (学生用书)
Little Johnny watched, fascinated, as his mother smoothedcold cream on her face. Why do you do that mommy? he asked. To make myself beautiful, said his mother, who then beganremoving the cream with a tissue. What's the matter? asked Little Johnny. Gi
趣味英语
This is the VOA Special English Agriculture Report. A cow with East Coast fever Each year a million cows in Africa die from East Coast fever. The disease is spread by tick bites. Young cows are most at risk; they can die within days. Farmers and her
VOA慢速英语2009年（十一）月
Scientists Regrow Tissue Killed During Heart Attack U.S. scientists have done what was once considered science fiction - regrown heart muscle to replace tissue that was killed off in a heart attack. It's the latest advance in the field of regenerativ
VOA标准英语2012年(二月)
Researchers have identified a link between dementia and the brain damage that can occur in older people with high blood pressure and other forms of cardiovascular disease. High blood pressure, high cholesterol, and other conditions that affect blood
VOA标准英语2010年(十一)月
About 1500 years ago Chinese settled there, but the Dutch imperialist invaded there in the 17th century. After that, in 1662 Zheng Chenggong, a hero of nation,drove them out. Since 1683 the island was ruled by Qing Dynasty nearly two centuries. Unfor
英语作文
Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o
60秒科学
> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59
科技之光
SCIENCE IN THE NEWS - Polio: How an Ancient Disease Met a Modern Prevention By Jerilyn Watson Broadcast: Tuesday, April 26, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English.
科技之光
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 bodies age and how we can slow down the process. University of Califo
英语新闻
对于许多人来说，看电视是获取信息以及娱乐生活的主要方式之一。那么，你知道与看电视相关的一些词汇以及表达方式吗？相信下面的四个场景对话能让你获益不少。 1. I was here first 场景：
英语口语
satisfactorily adv.令人满意地 The conference has been progressing satisfactorily so far. 这项会议至今进行得还算令人满意。 splash vt.泼水 vi.溅起水花 n.溅起的水花声 The baby plashed water on her mother as her mother ba
赖世雄进阶英语词汇3500