[化] 顺丁烯二酸酐; 马来酐; 马来酸酐; (俗称)顺酐

cis-butenedioic anhydride的用法和样例：

例句

Maleic anhydride is the important organic chemical material, is the third largest acid anhydride behind the phthalic anhydride and acetic anhydride.顺丁烯二酸酐，简称顺酐或者马来酐，是重要的有机化工原料，是仅次于苯酐和醋酐的第三大酸酐。

字源大挪移 Prefix - 表示数字的字首 43 di-,dicho-

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2018-12-04 / 阅读(139) / 评论(0)

英文魔法师字源大挪移

BEP72 Telephoning: Leaving a Voicemail Message

When you call someone but they arent there, often their voicemail picks up or answers the phone. Then you have to leave a message. Anyone who uses the phone in their job has to deal with voicemail. Have you ever started to leave a message on someones

发表于:2018-12-05 / 阅读(135) / 评论(0)

商务电话英语

瑞典歌曲：gje meq handa di

Anne Karin Kaasa - Gje Meg Handa Di Gje meg handa di, ven, naring;r det kveldar, det blir moslash;rkt og me treng ei hand Lat dei ljose og venlege tankar, fylgja med inn i draumars land Lat varmen fraring; ein som er glad i deg, tenne stjerner i mosl

发表于:2018-12-14 / 阅读(150) / 评论(0)

十八首全球最好听的女声

不择手段背单词(739):bedizen把…装饰得过分华丽而

bedizen, [bi'diz(ə)n] v 把装饰得过分华丽而俗气；穿着俗丽【记】bed床

发表于:2018-12-30 / 阅读(122) / 评论(0)

不择手段背单词

原版英语小短文 196. He Hears Voices

Pete is schizophrenic. About one percent of people are schizophrenic. Schizophrenia is a mental condition. Its cause is unknown. There is no cure. Drugs can help a person live with the condition. But these drugs have side effects. Schizophrenia usual

发表于:2019-01-02 / 阅读(100) / 评论(0)

原版英语小短文

Yossi Vardi :对抗局部变暖

热爱恶搞的投资家Yossi Vardi针对写博客时的危险性发表了详尽的见解。尤其给男性们警醒。

发表于:2019-01-05 / 阅读(103) / 评论(0)

TED公开课:(不只是)男人经

2005年NPR美国国家公共电台八月-China, Russia Hold Joint Military Exercis

This is Morning Edition from NPR news. I am Steve Inskeep and I am Susan Stamberg. Russian and Chinese forces today begin 8 days of joint military exercises. Some ten thousand troops are expected to take part, making this their largest joint military

发表于:2019-01-08 / 阅读(164) / 评论(0)

2005年NPR美国国家公共电台

VOA常速英语2008年-New Procedure Avoids Abdominal Incision, Offers

By Robert Raffaele Washington 27 March 2008 A new type of surgery may make it easier for patients who would otherwise require a more invasive procedure. The new type of operation makes it possible for doctors to remove unwanted tissue through a patie

发表于:2019-01-09 / 阅读(126) / 评论(0)

VOA标准英语2008年（三月）

2006年VOA标准英语-OIC Foreign Ministers Raise Concerns Over Insur

By Ron Corben Bangkok 23 June 2006 Foreign ministers attending a meeting of the Organization of the Islamic Conference have raised concerns over continuing violence in Thailand's largely southern Muslim provinces. The Thai government has responded t

发表于:2019-01-13 / 阅读(149) / 评论(0)

2006年VOA标准英语（六月）

Shappi Korsandi – Stand up

BBC Learning English Weekender Shappi Korsandi Stand up Callum:Hello, I'm Callum Robertson and this is Weekender. The Edinburgh International festival is a month-long arts and cultural festival held in August in Scotland's capital city, Edinburgh. A

发表于:2019-01-16 / 阅读(377) / 评论(0)

Weekender

美国习惯用语: Lesson 207 - MOTOR MOUTH / FOOT IN MOUTH DISEA

今天我们要给大家介绍两个以

发表于:2019-01-30 / 阅读(189) / 评论(0)

美国习惯用语

希腊神话：鲍西丝和费莱蒙　Baucis and Philemon

As was the common practice with the gods of Olympus，Zeus and Hermes were visiting the world in disguise．One day they came to a village．At a thousand house sthey knocked，and a thousand times they were refused rest and food and drink．At last

发表于:2019-01-30 / 阅读(140) / 评论(0)

阅读空间

2007年VOA标准英语-Visiting US Official Voices Support for Pakista

By Benjamin Sand Islamabad 16 June 2007 A senior U.S. official in Pakistan provided the strongest indication yet that Washington will stand by embattled Pakistan leader Pervez Musharraf. U.S. Deputy Secretary of State John Negroponte, in Pakistan for

发表于:2019-02-03 / 阅读(115) / 评论(0)

2007年VOA标准英语（六月）

流行美语第133课 - Dibs / Shotgun

今天Larry和李华要到朋友Bob家里，Bob因为要搬家，所以把他的立体音响卖给Larry。今天李华会学到两个常用语：dibs和shotgun. LL: I'm really glad that Bob gave me fi

发表于:2019-02-05 / 阅读(139) / 评论(0)

美国之音《流行美语》

Choose an Idiom

Choose the word or phrase which best completes each sentence. 1. He has to know you for a long time before he really begins to come out of his ___. a . shoe b . hell c . shed d . hole 2. I tell you I know for certain that Lisa will be promoted to man

发表于:2019-02-05 / 阅读(100) / 评论(0)

英文语法词汇

2007年VOA标准英语-US Congress Hears Many Voices on Iraq

By Dan Robinson Washington 15 June 2007 As debate continues over Iraq, U.S. lawmakers have heard from a number of voices including U.S. military officials, and current and former U.S. and Iraqi diplomats. VOA's Dan Robinson was present during many of

发表于:2019-02-06 / 阅读(179) / 评论(0)

2007年VOA标准英语（六月）

ESL Podcast 433 – Describing People’s Voices

Adriana: Shhh, Im trying to listen to the radio. Ralph: How can you listen to that radio station? All of their deejays have such funny voices. Adriana: Thats precisely why I like it. Take this guy, Kevin. He has a deep , husky voice that I find reall

发表于:2019-02-07 / 阅读(138) / 评论(0)

地道美语播客

VOA标准英语2009年-UN Chief Voices Concern Over Afghan Civilian De

U.N. Secretary-General Ban Ki-moon says he is deeply concerned about civilian casualties in Afghanistan. Mr. Ban called for closer cooperation between civilian and military leaders. U.N. Secretary-General Ban Ki-moon, and Afghan President Hamid Karz

发表于:2019-02-07 / 阅读(108) / 评论(0)

VOA标准英语2009年(二月)

Wu Di makes tennis history for Chinese men

MELBOURNE, Jan. 15 (Xinhua) -- History was made when Wu Di became the first Chinese man to have played a Grand Slam match here on Tuesday. History was also made by Japan's 42-year-old Kimiko Date-Krumm, who shocked 12th seed Nadia Petrova to become t

发表于:2019-02-13 / 阅读(104) / 评论(0)

英语新闻

英文摇滚歌曲：Sirenia - Ditt Endelikt

Regnet faller ned som tarer av et sorgfylr ar Uhelbredelige sar som i en tidlos klagesang dveler endelose savn og du som drev sa langt av sted i soken etter sjelefred For kun morket kan besta hvor alt det vakre ma forga du som bearrer verdens byrder

发表于:2019-03-02 / 阅读(152) / 评论(0)

英文摇滚歌曲

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

acutiflorum

administration authority

aerosolizer

aggregate resource supply and demand

austro-malayan region

balmaseda (valmaseda)

bicameral abscess