标签：biomaterial 相关文章
[00:03.89]You will hear three pieces of recorded material. [00:08.75]Before listening to each one, [00:12.90]you will have time to read the questions related to it. [00:17.55]While listening, [00:20.72]answer each question by choosing A, B, C or D. [
最新版英语听力教程
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th
Scientific American(七)月
This is Scientific American 60-Second Science. I'm Cindey Graber. This will just take a minute. When TV sets die, they usually end up incinerated or in landfills. But now researchers from Englands University of York believe theyve found a valuable us
Scientific American(七)月
With rising fuel prices, more attention is turning to biofuels. But (the) use of food crops for biofuel raises the concern of food shortages. But one non-food biofuel source is gaining attention. Just inland from the southern Mozambique beach resort
国家地理2008年
[00:03.81]bottom line :结余；结算 [00:05.82]bundle :n.搭售商品 [00:07.49]convention :n.(专业)展览会 [00:09.37]demonstration :n.展示 [00:11.46]entrance :n.入口 [00:13.29]go with :选择；决定采用 [00:15.17]high traffic :a.高流量
商务英语分类核心1000词汇
By Tendai Maphosa London 31 March 2008 Britain is stepping up the use of biofuels with new targets in the coming weeks - as the first step toward meeting an EU directive that five percent of all transport fuels come from renewable energy sources by t
VOA标准英语2008年（三月）
By Lisa Schlein Geneva 19 November 2006 The threat of bio-terrorism will top the agenda of a sixth review conference of the 1972 Biological Weapons Convention. The two-week conference, which begins Monday in Geneva will review the ban on biological
2006年VOA标准英语（十一月)
Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre
VOA标准英语2014年(二月)
Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h
VOA标准英语2014年(七月)
In a bid to upgrade the manufacturing sector, the Chinese central government rolled out the Made in China 2025 program last year, which is designed to transform China into a world manufacturing power. It has also been one of the hot topics at the soo
英语新闻
You may be interested in a copy of our current price list for straw products. Here is a price-list together with a booklet illustrating our products. Our products are very popular because of the natural material, their artistic designs and the fine w
天天商务口语
By Lisa Schlein Geneva 20 August 2007 Experts attending an international conference are calling for quick action to reduce the threat posed by biological weapons. Participants attending the week-long meeting at the United Nations in Geneva say the so
2007年VOA标准英语（八月）
By Mil Arcega Washington 28 April 2008 The World Food Program warns that rising food prices could turn into a global crisis unless the world acts quickly. The U.N. food agency has issued an urgent appeal to the international community for immediate a
VOA常速英语2008年（四月）
The U.N. Special Investigator on the Right To Food says soaring food prices have declined somewhat, but the crisis remains and the problems are exacerbated by the production of bio-fuels. The expert submitted a report to the U.N. Human Rights Counci
VOA标准英语2008年（九月）
白骨精 female office elite 拜金女 money-worship girl; material girl 败犬女 loser dog 大姐大 alpha woman 干物女 dry fish; dull and listless woman 乖乖女 well-behaved girl; obedient girl 虎妈 tiger mother 姐（姐只是个传说中的
英语口语
有关于外贸跟单英语口语60句 1．whats the size?多大尺寸？ 90x90 (ninety by ninety)九十乘九十。 2．whats the cmb? 体积多大？ 0.07m3 (zero point zero seven cube meter) 0.07立方米。 3．whats the best/last price? 最低价是
天天商务口语
The APP, 'zenkr', allows students to participate in class, not through a show of hands, but by communicating through their smartphones. Users scan a QR code projected on screens with their smartphones or other devices and then answer questions. The r
英语新闻
文本： H: Come in. A: Doing your homework? H: Yeah. What's up? A: I was just reading some material on this truth up day. Figure if I'm going to supervise, I... H: You really don't have to go. I mean, it sounds pathetic. A: No, I want to go. I need
跟着美剧练发音
雾霾 haze; 烟雾 smog; 空气污染指数 air pollution index; 橙色预警 orange alert; 悬浮颗粒物 airborne particulate matter; 可吸入颗粒物 inhalable particle; 有毒物质 toxic substance; 空气质量检测 air quality monitoring; 实
雅思英语