[化] 碱式硫酸铬; 铬盐精

美国英语听力80篇1 Lesson02

[00:09.95]Six weeks ago, the movie Erin Brockovich opened the United States. [00:16.95]So far, it has earned at least 100,000,000 dollars. [00:22.47]It tells a true story about a young woman who helped people in a California town gain money from an e

发表于:2018-12-03 / 阅读(375) / 评论(0)

标准美语发音的13个秘诀 CD4

《英语流行话题阅读:语境识词4500》05 Two Basic Ways to See Growth

Unit 5 Two Basic Ways to See Growth There are two basic ways to see growth: one as a product, the other as a process. People have generally viewed personal growth as an external result or product that can be identified and measured. The worker who ge

发表于:2018-12-04 / 阅读(303) / 评论(0)

英语流行话题阅读：语境识词4500

电脑英语计算机病毒

[00:00.00]Chapter 7 [00:00.91]第七章 [00:01.83]Computer Virus [00:03.17]计算机病毒 [00:04.52]Dialogue 1 [00:05.56]句型1 [00:06.61]A: Do you have virus protection software on your PC? [00:09.51]你的电脑有防毒软件吗？ [00:12.41]B:N

发表于:2018-12-05 / 阅读(368) / 评论(0)

电脑英语

破冰英语 Basic_Lesson12

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:2018-12-07 / 阅读(292) / 评论(0)

元元的播客

破冰英语 Basic_Lesson11

发表于:2018-12-07 / 阅读(287) / 评论(0)

元元的播客

破冰英语 Basic_Lesson10

发表于:2018-12-07 / 阅读(310) / 评论(0)

元元的播客

破冰英语 Basic_Lesson09

发表于:2018-12-07 / 阅读(265) / 评论(0)

元元的播客

美国有线新闻 CNN 水中何种元素引发癌症?

Could an element commonly found in Americans` tap water caused cancer? A nonprofit environmental group is sounding the alarm about something called chromium-6. The U.S. government says high levels of it in the air can be carcinogenic, meaning they ca

发表于:2018-12-20 / 阅读(314) / 评论(0)

CNN美国有线新闻2017年2月

【电影预告片填空】生存者

Help! There's someone hurt! - What are you hearing, Sullivan? - According to first responders it was a bomb. - How many? - Four of yours and five passersby. - Have anyone claimed responsibility? - We found this. - Do you think she's dead? - We can't

发表于:2018-12-28 / 阅读(256) / 评论(0)

英文电影预告片填空

VOA慢速英语2013 AS IT IS 2013-05-23 Pollution Forces Residents from California Town

AS IT IS 2013-05-23 Pollution Forces Residents from California Town Hello. Im Jim Tedder in Washington. Welcome to a special edition of As It Is. Seventeen years ago, an American energy company paid hundreds of millions of dollars to settle legal cla

发表于:2019-01-12 / 阅读(286) / 评论(0)

2013年VOA慢速英语(六)月

美国国家公共电台 NPR New 'Basic Economy' Airfares May Not Be As Cheap As You Think

DAVID GREENE, HOST: The big three airlines - American, Delta and United - are taking on discount carriers like Spirit and Frontier by offering no-frills discounted fares called basic economy. Some are calling it misery class because among other thing

发表于:2019-01-16 / 阅读(323) / 评论(0)

2017年NPR美国国家公共电台3月

Protamine Sulfate Injection

Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d

发表于:2019-01-19 / 阅读(341) / 评论(0)

世界各地新闻集锦

2014年ESL之日常生活 16 Basic Military Commands

Basic Military Commands Marta: Whats going on out here? Whats all that noise? Bruno: Im putting the troops through their drills. Marta: Troops?! Bruno: Watch this. Hey, I didnt tell you you could be at ease. Attention! Fall in. Forward, march! Marta:

发表于:2019-01-23 / 阅读(360) / 评论(0)

2014年ESL之日常生活

pbs高端访谈:危险化学品六价铬污染美国饮水系统

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(382) / 评论(0)

PBS访谈环境系列

pbs高端访谈:保护公民免受污染饮水的威胁

GWEN IFILL: Now NewsHour science correspondent Miles O'Brien begins a two-part look at America's drinking water, and the regulatory system that is supposed to guarantee its safety. His report is the result of a partnership with the Center for Public

发表于:2019-01-27 / 阅读(296) / 评论(0)

PBS访谈环境系列

BASIC语言改变世界五十周年

May 1 marks the 50th anniversary of a special computer language aimed at enabling college students not trained in mathematics to use computers. The birth of BASIC is now seen as a major step toward the era of personal computers. 50 years ago, compute

发表于:2019-02-05 / 阅读(394) / 评论(0)

英语新闻

VOA标准英语2008年-Report Says Basic Medical Care Could Save Lives

By Douglas Bakshian Manila 06 May 2008 A new report says the lives of millions of young children could be saved each year if basic medical care and medicine are made available to the poor. Douglas Bakshian has more from Manila. The report by the U.S.

发表于:2019-02-05 / 阅读(379) / 评论(0)

VOA标准英语2008年（五月）

【英语时差8，16】全球变暖2

We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S

发表于:2019-02-23 / 阅读(316) / 评论(0)

英语时差8，16

英语听力文摘 English Digest 196、不锈钢的秘密

Why Stainless Steel Does Not Rust But Other Metals Do? 不锈钢（Stainless Steel）指耐空气、蒸汽、水等弱腐蚀介质和酸、碱、盐等化学浸蚀性介质腐蚀的钢，又称不锈耐酸钢。实际应用中，常将耐弱腐蚀介质

发表于:2019-02-24 / 阅读(361) / 评论(0)

英语听力文摘 English Digest

英语听书《海底两万里》第170期第12章一切都用电(3)

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(536) / 评论(0)

《海底两万里》中英双语有声读物

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学英语单词

4-(1-naphthylazo)-1-naphthylamine

advanced through-the-lens flash metering