单词：methanal
methanal的用法和样例：
例句
- It introduces a process of synthesizingmethylenebisacrylamide from acrylamide and methanal,method of sample analysis and discusses the conditions and influencing factors.介绍了以丙烯酰胺和甲醛为原料合成亚甲基双丙烯酰胺的工艺过程和样品分析方法，并对工艺条件及影响因素作了讨论。
单词：methanal 相关文章
第二章 消化系统 Chapter 2 Digestive System accessory pancreatic duct 副胰管 accessory parotid gland 副腮腺 aggregated lymphatic follicles 集合淋巴滤泡 alimentary canal 消化管 alimentary gland 消化腺 alimentary system 消化系统 alveolar bone 牙槽骨 am
医学英语
Now, in the early days of my lecture, when I used to talk about risk, that is all I would say. 在我早先的演讲中，当我谈到风险的时候，我就只讲上面这些就够了。 But people would sometimes try to ask me a question during th
欧美名人演讲
这集的主题为什么叫作人模人样呢? 因为这一集要介绍的都是一些关于人的讲法. 这些用法可以用来介绍自己, 当然也可以用来形容他人. 其中有些蛮有趣的
小笨霖英语笔记
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in
Scientific American(四)月
191. The anal-retentive retailer保留肛门性格的零售商 restrictive-revision There was a retailer who specialized in selling reversible clothing. Being anal-retentive, his personality was somewhat restrictive, which tended to retard his sales.
胡敏托福词汇记单词
Technology Report - Bigger Ships, So a Bigger Panama Canal This is the VOA Special English Technology Report. The Panama Canal opened almost one hundred years ago. More than one million ships have passed through the waterway since nineteen fourteen.
2011年VOA慢速英语(八)月
AS IT IS 2015-09-20 Documentary Shows US, Mexico Fighting Drug Cartels 纪录片:墨西哥打击贩毒集团 A new movie follows two communities -- one in the United States and the other in Mexico -- as they try to stop drug cartels from harming thei
2015年VOA慢速英语(九)月
UN Wants Australia to Take Lead Against Asian Drug Traffic 联合国促澳大利亚带头打击亚洲毒品走私 From VOA Learning English, this is the Health Lifestyle report. United Nations officials say they have recently seen an increase in the
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Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the
VOA标准英语2012年(六月)
UN:MethUseSurginginSoutheastAsia A report by the United Nations Office on Drugs and Crime (UNODC) warns that production and use of synthetic drugs such as amphetamine-type stimulants is widespread and growing globally. The report identifies Southeast
VOA标准英语2011年(九月)
今天我们要学的词是 disposable. Disposable 形容词，一次性的。British lawmakers called on the government to impose a 25-pence latte levy on disposable coffee cups. 英国议员呼吁政府对一次性咖啡杯子征收25便士的拿铁税
英语单词荟萃
Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont
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1. Did you believe in the tooth fairy when you were a kid? 你小时候相不相信牙仙子? 老美有一个信仰，小孩子换牙时，父母会告诉他把牙齿用信封装好，放在枕头下，早上起来时牙仙子会用钱跟他换牙齿，
实用英语
Among the beautiful pictures That hang on Memory's wall, 在那些美轮美奂的画中间挂在记忆墙上的， Is one of a dim old forest, That seemeth best of all; 是古老的森林一抹幽暗，似乎在其中画工最善； Not for its gnarl
美国语文第六册
This is so cool. I'm hot like I'm at the beach, but I'm not stepping in any used condoms. 这也太酷了。就像置身在海滩上一样热，又不用担心踩到用过的保险套 Yeah, these are great. My friend Candice Travelstead used one to m
打工姐妹花第一季
All right, ladies, listen up! Hey, Max! 女士们，听好啦！嗨，麦克斯！ Hi, Toby. Heads-up, me, her, and, uh... Excuse me, what's your name? 嗨，托比。先说好，我跟她，还有...抱歉，你叫什么名字 Oh, it's cool, we don'
打工姐妹花第一季
Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re
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从洪荒之力到匠人精神，2016年最火的中文流行语英语怎么说？哪种说法最切贴？听Jenny, Adam为你总结！ 关键词： Buzzwords: 热词 Meme: 迅速爆红的文化现象，包括概念、热词、图片、视频等等 *特
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