[医] 氢离子浓度测定法

大千世界:狗训练

If you read dog-training books or watch dog trainers on television, you've probably learned that to control your dog, you have to display dominance. It's commonly thought that because dogs are pack animals, they live according to dominance hierarchie

发表于:2018-12-07 / 阅读(207) / 评论(0)

大千世界

太阳科普第6期

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条，都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(184) / 评论(0)

太阳科普

Uses Hydrogen1 as Fuel2

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(177) / 评论(0)

VOA2003（上）-科技导航

Three Methods to Improve Your Presentations

Giving a presentation can be a scary task. It can be even more worrisome when the presentation is not in your native language. You may forget the English words for what you want to say. Or, like a lot of people, you may get nervous. But, the good new

发表于:2018-12-07 / 阅读(118) / 评论(0)

2017年VOA慢速英语(三)月

调查显示超七成网友认为现金渐成非必需品

More than 70% of Chinese internet users said carrying cash is not a necessity of life any more, as payment methods such as QR code scanning, China UnionPay and online payments become increasingly popular. 随着扫描二维码、中国银联、网上支

发表于:2018-12-11 / 阅读(127) / 评论(0)

英语新闻

我们该选择死亡吗？

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(151) / 评论(0)

英语演讲

双语有声阅读:Controlling Your Concentration 控制你的注

Psychologically defined, concentration is the process of centering one's attention over a period of time. In practical application, however, concentration is not as simple to deal successfully with as the definition may imply. For this reason, it is

发表于:2019-01-02 / 阅读(168) / 评论(0)

双语有声阅读

Coffee

Broadcast: Jan 14, 2003 By Mario Ritter This is the VOA Special English Agriculture Report. World coffee prices have dropped by almost fifty percent over the last three years. They are at their lowest

发表于:2019-01-02 / 阅读(136) / 评论(0)

VOA2003（上）-社会广角

英语四级句子成分详解（2）

很多同学留言说不知道如何划分句子成分，那你知道句子构成了吗？下面就跟小编一起看看句子的基本成分有哪些吧，希望今天为大家整理的这篇文章可以让大家学会英语语法。基本句型三：

发表于:2019-01-08 / 阅读(143) / 评论(0)

大学四六级阅读

如何让你的GRE作文“骨肉相连”

gre作文原稿(第三段) The nonmainstream areas can do harm to[1] the society, only when people don't inquire them merely for fun, but for resolution[2] of life instead. It is ignorance because no one in the world could point out way for others, n

发表于:2019-01-08 / 阅读(115) / 评论(0)

GRE作文

VOA慢速英语 200707030041

This is the VOA Special English Agriculture Report. An American expert in food science technology has won a major international award. Philip E. Nelson has been named winner of the Two Thousand Seven World Food Prize. World Food Prize Foundation Pres

发表于:2019-01-11 / 阅读(184) / 评论(0)

VOA慢速英语2007年（七）月

“工作经历”相关中英文词汇(2)

replace 接替，替换 representative 代表，代理人 research 调查，研究 resolve 解决 set 创造（纪录等） settle 解决（问题等） shorten 减低......效能 show 显示,表明 significant 重要的,有效的 simplify 简化,精简

发表于:2019-01-17 / 阅读(126) / 评论(0)

实用英语

纽约车展上电动汽车来势汹汹

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(150) / 评论(0)

英语新闻

VOA慢速英语20060822a

AGRICULTURE REPORT - Experts Say Water Shortages Affect One-Third of World PopulationBy Mario Ritter Broadcast: Tuesday, August 22, 2006 This is the VOA Special English Agriculture Report. Water is sc

发表于:2019-01-30 / 阅读(147) / 评论(0)

2006年慢速英语（八）月

托福考试：TOEFL模拟试题

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(177) / 评论(0)

托福英语

雅思单词前缀整理

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

发表于:2019-02-06 / 阅读(190) / 评论(0)

雅思英语

我们该选择死亡吗

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(190) / 评论(0)

英语美文

经济学人197:学术不端一系列的错误(下)

A bigger can? 一个更大的罐头？ By the end of 2010, Dr Potti had resigned from Duke, 到2010年底，Potti博士已经从杜克大学辞职， the university had stopped the three trials for good, 学校永久停止了那三项临床试验，

发表于:2019-02-16 / 阅读(168) / 评论(0)

经济学人科技系列

各种花样的风筝怎么说？

9月16日是墨西哥馆日，墨西哥馆五颜六色的风筝森林吸引了不少人的眼球，你知道小小的风筝里有什么大学问吗？其实风筝也有很多种分类哦，一起来看看吧。说到kite这个单词，这也许是我们

发表于:2019-02-18 / 阅读(205) / 评论(0)

英语口语

朝鲜宣布成功进行首次氢弹试验

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实，朝鲜成功的进行了

发表于:2019-02-18 / 阅读(128) / 评论(0)

英语新闻

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学英语单词

capital expenditures and revenue expenditures