单词：urea non-adduct-forming material
单词：urea non-adduct-forming material 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
Forming a Union Norma: What is this? Jimmy: Its a flyer for a meeting Ive called to talk about forming a labor union here. Norma: Here? Do you think the management will let us? Jimmy: They cant stop us. Were working longer and longer hours and we nee
2013年ESL之商务英语
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
Pet turtles can be unsanitary. But Chinese soft-shelled turtles really up the ante on distasteful behavior. They perform a variation on urinationthrough their mouths. Most land-based vertebrates produce urine to get rid of water-soluble toxic waste,
Scientific American(十)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
[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
Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the
60秒科学
Locust Swarms Forming in West Africa Four countries in West Africa have been put on alert for the likely arrival of swarms of Desert Locusts. If uncontrolled, a small swarm can eat the same amount of food in one day as 35-thousand people. Locust swar
VOA标准英语2012年(十月)
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)
Science and technology 科学技术 Reptilian micturition 爬行动物的排尿 That's a relief 可算是方便了 Softshell turtles urinate through their mouths 鳖类通过其嘴部小便 WHY did the turtle stick its head in a bucket? 为什么乌龟
经济学人科技系列
A bureaucrat was hiking when he came upon a shepherd tending a large flock. The bureaucrat took a fancy to the sheep and asked the shepherd, If I can guess how many there are, may I have one? The shepherd thought it unlikely the man would guess the e
趣味英语
今天我们要学的词是bureaucracy。 Bureaucracy, 官僚。美国国防部长盖茨上周末公开对军方庞大的官僚体制提出批评。 Gates took aim at what he called a bloated bureaucracy, 他还保证要亲自过问，精简军方的官
英语单词荟萃
Volkswagen has devised a new catalytic converter that could fix the majority of the cars in the US affected by the diesel emissions scandal, as details emerge of its attempts to satisfy regulators. 大众汽车(Volkswagen)设计出一种新的催化转
英语新闻
Conflict resolution marked the career of former Finnish president Martti Ahtisaari who has received this year's Nobel Peace Prize for his efforts to secure peace in various regions of the world. In this report from Washington, Senior Correspondent A
VOA标准英语2008年（十月）
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