[网络] 氟化物

SSS 2010-12-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

发表于:2018-12-02 / 阅读(501) / 评论(0)

Scientific American(十二)月

Dental Health

07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(1403) / 评论(0)

科技之光

ante-和anti的区别用法

ante-，anti- 这一对前缀的意义并不相同。ante- 是拉丁前缀，其意为前面、在之前或早于（in front of or earlier than）。它既可以指地点，也可以指时间。例如： anteroom 前厅；前房 antenuptial 婚前的

发表于:2018-12-18 / 阅读(566) / 评论(0)

英文语法词汇

Pakistan Must Stop Anti-India Activity for Better Ties

India's Prime Minister has used the 67th Independence Day celebrations this Thursday to call on Pakistan to prevent anti-India activities, on top of calling for calm within his own country. CRI's He Fei has more. Addressing the nation at Red Fort in

发表于:2018-12-19 / 阅读(458) / 评论(0)

世界各地新闻集锦

口腔临床英语对话第29期:正畸治疗(2)

Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗？ If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的，我想蛀了也没有关

发表于:2018-12-27 / 阅读(517) / 评论(0)

口腔临床英语对话

Anti-War Protests Continue Worldwide

Broadcast: Mar 22 2003 Large crowds of anti-war 1) demonstrators turned out in New York City, Saturday. Protesters marched in the streets there and in several major U.S. cities to protest the Bush adm

发表于:2019-01-03 / 阅读(509) / 评论(0)

VOA2003（上）-国际时讯

Pro, Anti-War Groups Use Internet to Organize Supporters

Broadcast: Apr 03, 2003 The Internet has been hailed as a great tool for democracy and public debate, both from pro-war and anti-war groups. The two sides have found the World Wide Web useful in helpi

发表于:2019-01-03 / 阅读(488) / 评论(0)

VOA2003（上）-科技先知

THE MAKING OF A NATION - The American Civil War: An Anti-War

THE MAKING OF A NATION - The American Civil War: An Anti-War Movement in the North Turns Violent By Frank Beardsley Broadcast: Thursday, April 07, 2005 (MUSIC) VOICE ONE: THE MAKING OF A NATION -- a p

发表于:2019-01-11 / 阅读(503) / 评论(0)

The Making of a Nation

VOA标准英语2009年-Rights Group Warns of Rwanda Anti-Gay

A coalition of human rights groups is condemning a proposed amendment to Rwanda's criminal law that would criminalize homosexual behavior and advocacy. Alan Boswell | Nairobi 17 December 2009 Meanwhile, Rwanda's northern neighbor, Uganda, is receivin

发表于:2019-01-13 / 阅读(518) / 评论(0)

VOA标准英语2009年(十二月)

VOA标准英语2010年-Coal Burning Linked to Fluoride Diseas

A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti

发表于:2019-01-14 / 阅读(471) / 评论(0)

VOA标准英语2010年(十)月

英闻天下——30 Weibo Anti-corruption Thrives in China

The name uncle watch is one of the highlights of weibo anti-corruption this year. Uncle watch, Yang Dacai, a work safety official in Shaanxi, who was sacked in September after Internet users posted photos of him wearing luxury timepieces that he coul

发表于:2019-01-19 / 阅读(511) / 评论(0)

英闻天下

科学美国人60秒 SSS 海狸牙齿的奥秘

Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错，这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been

发表于:2019-01-20 / 阅读(459) / 评论(0)

2018年科学美国人1月

SCIENCE IN THE NEWS - Dental Health

SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo

发表于:2019-01-30 / 阅读(435) / 评论(0)

科技之光

学个词 Learn a Word-VOA英语教学 2280-fluoride

今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟

发表于:2019-02-02 / 阅读(384) / 评论(0)

英语单词荟萃

China reviews anti-dumping measures on Japanese chloroprene rubber

BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(631) / 评论(0)

英语新闻

Japan's antinuclear Tomorrow Party splits into two groups

OSAKA, Dec. 28 (Xinhua) -- Japan's antinuclear Tomorrow Party on Friday split into two groups only a month after its inception due to internal conflicts over personnel matters, local press reported. Yukiko Kada, governor of Shiga Prefecture and the f

发表于:2019-02-08 / 阅读(536) / 评论(0)

英语新闻

China, Russia satisfied with joint anti-terror military exer

BEIJING, July 24 (Xinhua) -- China and Russia are satisfied with the Peace Mission-2009 joint anti-terror military exercise, senior military officers of the two countries said here on Friday. Guo Boxiong, vice chairman of China's Central Military Com

发表于:2019-02-08 / 阅读(483) / 评论(0)

英语新闻

China launches anti-dumping probe into TDI imports from EU

BEIJING, March 23 (Xinhua) -- The Ministry of Commerce announced Friday it will launch an anti-dumping probe into toluene diisocyanate (TDI 80/20) imported from the European Union. A brief statement on the MOC's website said it will begin investigati

发表于:2019-02-17 / 阅读(491) / 评论(0)

英语新闻

8 Great Anti-Hacks to Change Your Life

8 Great Anti-Hacks to Change Your Life Editors note: This is a guest post from Clay Collins of Project Liberation and The Growing Life. Albert Einstein started that problems cannot be solved by the same level of thinking that created them. Einstein,

发表于:2019-02-18 / 阅读(532) / 评论(0)

阅读空间

CCTV9英语新闻：China to improve anti-terrorism cooperation with Indonesia

BEIJING, March 17 (Xinhua) -- China is willing to work with Indonesia to improve anti-terrorism cooperation to safeguard security and stability in the two countries and the region, a Chinese Foreign Ministry spokesperson said on Thursday. Spokesperso

发表于:2019-03-12 / 阅读(527) / 评论(0)

cctv9英语新闻2016年

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