[化] 氯解磷定; 氯化派姆

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

发表于:2018-12-08 / 阅读(90) / 评论(0) 分类 VOA标准英语2014年(六月)

On Friday mornings ,we bring you StoryCorps when people across the country share stories about their lives. And today two parents remember their daughter. Liddie Horsey was born with a rare genetic disorder. It's called Cornelia de Lange Syndrome. I

发表于:2018-12-19 / 阅读(112) / 评论(0) 分类 2007年NPR美国国家公共电台

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发表于:2018-12-30 / 阅读(122) / 评论(0) 分类 单词解析速记

头孢菌素类 第三代 头孢地尼 Cefdinir Cefzon 头孢布坦 Ceftibuten 头孢布烯,Cedax 头孢卡品 Cefcapene Pivoxil 头孢卡喷新戊酰氧甲酯,Flomox 头孢噻肟钠 Cefotaxime So

发表于:2019-01-03 / 阅读(90) / 评论(0) 分类 医务英语

头孢菌素类 第二代 头孢呋辛钠 Cefuroxime Sodium 头孢呋肟,赐福乐信,舒贝洛,西力欣,特力欣,明可欣,CXM,Zinacef,Monacef,Ketocef,Furex Kesiut,Supero 头孢

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 医务英语

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发表于:2019-01-10 / 阅读(124) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(128) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(186) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(212) / 评论(0) 分类 外研社新标准高中英语选修7

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发表于:2019-01-10 / 阅读(140) / 评论(0) 分类 外研社新标准高中英语选修9

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发表于:2019-01-10 / 阅读(133) / 评论(0) 分类 外研社新标准高中英语选修9

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发表于:2019-01-10 / 阅读(319) / 评论(0) 分类 外研社新标准高中英语选修9

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发表于:2019-01-10 / 阅读(326) / 评论(0) 分类 外研社新标准高中英语选修9

North Korean leader Kim Jong Il is still nowhere to be seen, more than a week after South Korean intelligence officials revealed the belief he is recovering from a stroke. As VOA's Kurt Achin reports from Seoul, South Korean officials are trying to

发表于:2019-01-12 / 阅读(103) / 评论(0) 分类 VOA标准英语2008年(九月)

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(80) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(133) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(91) / 评论(0) 分类 自然百科2009年

EDUCATION REPORT - Learning Disabilities, Part 4: Dyspraxia By Nancy Steinbach Broadcast: Thursday, February 26, 2004 This is Steve Ember with the VOA Special English Education Report. People who have

发表于:2019-01-30 / 阅读(120) / 评论(0) 分类 教育与新闻

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(84) / 评论(0) 分类 地道美语播客

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(149) / 评论(0) 分类 《海底两万里》中英双语有声读物