单词：cell feed material
单词：cell feed material 相关文章
WORDS AND THEIR STORIES - Chicken Feed / Peanuts By Jerilyn Watson Broadcast: Sunday, September 12, 2004 ((广播稿正在征集中 - 欢迎大家积极参与听写,将自己听到的内容写下来，然
WORDS AND THEIR STORIES
By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The
VOA2003（下）-环境与健康
New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc
VOA标准英语2014年(六月)
If you are hungry, what do you do? Grab a piece of your favorite meal and stay quiet after that? Just like your stomach, even your mind is hungry. But it never lets you know, because you keep it busy thinking about your dream lover, favorite star an
白领英语晨读
[00:05.49]Physical changes, such as gray hair and small lines on the face, appear as we grow older. [00:15.78]Now, American scientists say such changes may result partly from changes in our genetic material. [00:24.24]They say these genetic mutations
美国英语听力80篇
For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea
国家地理2008年
She liked to feed popcorn to the pigeons. The pigeons liked to eat her popcorn. She put popcorn in her hand. A pigeon ate the popcorn in her hand. She put popcorn on her shoulder. A pigeon ate the popcorn on her shoulder. She put popcorn in her hair.
超级简单英语阅读
chicken out chicken feed 我们在[美国习惯用语]节目里谈到过好多好吃的东西，像牛肉、火鸡、鸭子等。今天我们来讲和[鸡]有关的习惯用语。近年来，美国人对
美国习惯用语
This is the VOA Special English Agriculture Report. Hogs at an Ohio farm Research shows that waste from pigs that are fed a special kind of corn may help a farmer's crops. And it also may help the environment. Any farmer who raises swine knows that
VOA慢速英语2008年（八）月
Agriculture Report - Improving 'Feed Efficiency' in Cattle 农业报道 - 提高牛的饲养效率 From VOA Learning English, this is the Agriculture Report in Special English. 这里是美国之音慢速英语农业报道。 Animal feed is the bigge
2012年VOA慢速英语(十一)月
Agriculture Report - Feed the Soil, Feed the Crops This is the VOA Special English Agriculture Report. Studies show farmland in Africa is often lacking in important nutrients. But researchers say a combination of farming methods may help. Since the w
2012年VOA慢速英语(九)月
Hey, I'm Workin' for Chickenfeed Here! I'm Susan Clark with Words and Their Stories, a program in Special English on the Voice of America. Almost every language in the world has a saying that a person can never be too rich. Americans, like people in
2014年VOA慢速英语(十)月
Can We Feed the World? Decades after the Green Revolution took place in many parts of the world, food shortages, high prices, hunger and poverty are major problems. Its estimated there are about one billion chronically hungry people. Now, a new book
VOA标准英语2012年(九月)
Feed the Soil, Feed the Crops If African farmers are going to feed the continent, they may first want to feed the soil. Studies show farmland is often depleted of vital nutrients. But researchers say a combination of organic farming methods may help.
VOA标准英语2012年(九月)
College Students Rescue Leftover Food, Feed the Poor University of Maryland student Ben Simon and his friends couldn't stand to see good food thrown out on their campus. We basically noticed that some of the extra food from the dining hall was going
VOA标准英语2013年(三月)
She liked to feed popcorn to the pigeons. The pigeons liked to eat her popcorn. She put popcorn in her hand. A pigeon ate the popcorn in her hand. She put popcorn on her shoulder. A pigeon ate the popcorn on her shoulder. She put popcorn in her hair.
英语第1级听力-English Level 1
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
趣味英语
Words and Their Stories: Chickenfeed 词汇典故：蝇头小利 I'm Susan Clark with WORDS AND THEIR STORIES, a program in Special English on the Voice of America. 这里是美国之音慢速英语词汇典故栏目，我是苏珊克拉克（Susan C
2012年VOA慢速英语(七)月
WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi
英语新闻