离子交换动力学

When you go abroad, what's the thing you need most? Money, of course! You'll need to go to the bank to buy some traveler's checks. Then when you arrive at your destination, you'll have to go to a bank

发表于:2018-12-08 / 阅读(438) / 评论(0) 分类 赖世雄中级美国英语

[00:00.00] unit 14 Mainly Revision [00:34.51]Ann___(not,watch)TV last night.The children__(go)to the farm last Saturday. [00:47.86]The boys__(meet)after school yesterday afternoon. [00:53.42]Mr Turner__(say)sorry to the conductor on the train because

发表于:2018-12-10 / 阅读(262) / 评论(0) 分类 (人教版)初中二年级上册

[0-1:56.48]Oh. 哦 [00:00.96]You should have gone to China. 你们应该去中国 [00:02.84]You know, cause I hear they give away babies 我听说他们送孩子就像大赠送 [00:05.16]like free iPods. 知道吗 [00:06.44]they pretty much just put

发表于:2019-01-01 / 阅读(206) / 评论(0) 分类 听电影学英语-朱诺

By Mario Ritter Broadcast: November 14, 2003 This is Steve Ember with the VOA Special English Economics Report. Last week we told about the New York Stock Exchange and the 1)resignation of its chairma

发表于:2019-01-02 / 阅读(176) / 评论(0) 分类 VOA2003(下)-农业与经济

By Mario Ritter Broadcast: November 7, 2003 This is Bob Doughty with the VOA Special English Economics Report. The largest 1)stock market in the world is the New York Stock Exchange. It is also the ol

发表于:2019-01-02 / 阅读(164) / 评论(0) 分类 VOA2003(下)-农业与经济

This is Scientific American's 60-Second Science. I'm Christie Nicholson. This will just take a minute. So check this out: Hi my name is Adi Rajagopalan, I'm going on 18 in a few days, and my project was Modelling Synergistic Cellulolytic-Hemicellulol

发表于:2019-01-08 / 阅读(139) / 评论(0) 分类 Scientific American(三)月

By Cindy Saine Washington 21 September 2007 The U.S. tech-heavy stock exchange, Nasdaq, has struck a deal to sell a 20 percent stake to the United Arab Emirates-owned Borse Dubai, in exchange for control of the Nordic bourse operator OMX. But the dea

发表于:2019-01-13 / 阅读(190) / 评论(0) 分类 2007年VOA标准英语(九月)

Occupy Wall Street Protesters Hold 'Day of Action' Two days after a court ruling closed the Occupy Wall Street encampment in New York, the protesters held a Day of Action -- not only in New York but other cities across the nation Thursday. The protes

发表于:2019-01-13 / 阅读(151) / 评论(0) 分类 VOA标准英语2011年(十一月)

Venezuelan Election is Again Choice Between Socialism, Capitalism Business has not been good for Rotzen Villabon, who owns a gift shop called Viqiu. He needs dollars to import products made in China but he can't find any at the official exchange rate

发表于:2019-01-14 / 阅读(161) / 评论(0) 分类 VOA标准英语2013年(四月)

在新的一年里,人们总是会为自己定下目标,许下愿望,希望在一年里能够实现,你的愿望是什么呢?有决定做到吗? Jennifer: Hello and a very warm and friendly welcome to the first 6 Minute English of 2013. M

发表于:2019-01-23 / 阅读(225) / 评论(0) 分类 一起听英语

The Virtual College In the fall of 1994, I arrived at my freshman dorm in my old station wagon filled with new clothes, too many shoes, and my proudest possession: a computer the size of a small refrigerator. Fortunately, I only had to lug1 my 50-pou

发表于:2019-02-04 / 阅读(184) / 评论(0) 分类 实用英语

Many online social networking tools have fulfilled uses their creators had never dreamed of. Twitter started as a way to tell others what you were doing, and then surprisingly, turned into a tool to find gas during the Atlanta gas crunch last year. N

发表于:2019-02-05 / 阅读(126) / 评论(0) 分类 实用英语

The so-called one-child policy was brought into law in the late 1970's as a way to limit population growth, given that the economy at the time was just starting to open up to the outside world, and the domestic resources, particularly in urban areas,

发表于:2019-02-06 / 阅读(111) / 评论(0) 分类 英语新闻

You're standing face-to-face with a professional in your industry who can help you advance your career. This is your chance to wow this person with a strong handshake, bright smile and direct eye contact, followed by a witty comment that initiates a

发表于:2019-02-07 / 阅读(147) / 评论(0) 分类 英语口语

BEIJING, Jan. 12 (Xinhua) -- China will push forward the development of a national off-exchange or over-the-counter (OTC) market to meet growing financing demand of enterprises, a senior securities official said on Saturday. Yao Gang, vice chairman o

发表于:2019-02-08 / 阅读(145) / 评论(0) 分类 英语新闻

你知道丈夫的含义吗?丈夫、丈夫,一丈之内乃夫也!你知道英文husband是怎么来的吗?husband=house+band 房屋栓牢!(band的含义就是Something that constrains or binds morally or legally约束:在道义上或法律

发表于:2019-02-08 / 阅读(162) / 评论(0) 分类 实用英语

China, Russia vow to advance cultural exchange

发表于:2019-02-14 / 阅读(142) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Computer security 计算机安全 Blame game 推脱责任 How to mimic human laxness with computers 如何用计算机模拟人类错误 TO ERR is human, but to foul things up completely takes a computer, or so the

发表于:2019-02-16 / 阅读(147) / 评论(0) 分类 经济学人科技系列

MARIUPOL, UKRAINE Smoke billows from Azovstal steel works here, one of the many gargantuan industrial assets in this southeastern port city owned by Ukraines richest man, Rinat Akhmetov. Akhmetov employs more than 300,000 people across the region. Th

发表于:2019-02-18 / 阅读(150) / 评论(0) 分类 英语新闻

BEIJING, Dec. 27 (Xinhua) -- The People's Bank of China (PBOC), China's central bank, announced Tuesday that it is banning local regions, institutions or individuals from setting up gold exchanges apart from the existing Shanghai Gold Exchange and Sh

发表于:2019-02-18 / 阅读(157) / 评论(0) 分类 英语新闻