单词：tin(iv) fluoride
单词：tin(iv) fluoride 相关文章
WORDS AND THEIR STORIES - Tinpan Alley By Susan Kelen Broadcast: Sunday, October 10, 2004 Now, the VOA Special English Program Words and Their Stories. Today, we tell about the expression, tinpan alle
WORDS AND THEIR STORIES
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
Scientific American(十二)月
[00:00.00]9.I:What do you think is the relationship [00:02.27]你认为 [00:04.55]between the subjects you have taken and the job you are seeking? [00:06.99]你曾修读的科目和你申请的这份工作有何关系？ [00:09.43]A:I have taken cour
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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
科技之光
By Robert Berger Jerusalem 30 September 2006 Labor unrest is growing in the Gaza Strip, where cash-strapped Palestinians are venting their anger at the government, led by the Islamic militant group Hamas. Hamas has rejected international conditions
2006年VOA标准英语（九月）
'Rin Tin Tin' Recounts Dog's Rise to Stardom Susan Orlean, author of Rin Tin Tin: The Life and the Legend, has vivid memories of the German Shepherd from her 1950s childhood, when the animal performed daring rescues on a television series. But as she
VOA标准英语2012年(一月)
Rival Palestinian factions Fatah and Hamas are holding talks aimed at healing their divisions and creating a new unity government. Delegations from the two factions met at the Cairo office of Egypt's intelligence chief Omar Suleiman, who has been le
VOA标准英语2009年(二月)
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
口腔临床英语对话
By Robert Berger Jerusalem 22 December 2006 Rival Palestinian factions have clashed again in the Gaza Strip and West Bank. At least one person was killed and six wounded. As Robert Berger reports from VOA's Jerusalem bureau, a breakdown of law and o
2006年VOA标准英语（十二月）
By Robert Berger Jerusalem 25 May 2006 Palestinian Prime Minister Ismail Haniyeh of Hamas, center, attends a Palestinian National Dialogue Conference in Gaza City Rival Palestinian factions have opened talks aimed at easing tensions, which have esca
2006年VOA标准英语（五月）
By Sonja Pace Jerusalem 25 January 2006 Palestinian family look at a voting list outside a polling station in the West Bank City of Jenin, 25 January 2006 Palestinians are voting for a new parliament
2006年VOA标准英语（一月）
By Robert Berger Jerusalem 28 January 2007 Palestinian militants from Al-Aqsa Martyrs' Brigades kidnap Fayyad al Arba, a local Hamas leader, center, in the West Bank town of Nablus, 28 Jan 2007 Rival Palestinian factions have clashed in the Gaza Str
2007年VOA标准英语（一月）
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
VOA标准英语2010年(十)月
By Robert Berger Jerusalem 13 January 2007 Warring Palestinian factions have given an optimistic assessment about a new round of coalition talks. As Robert Berger reports from VOA's Jerusalem bureau, the negotiations come amid an increasingly violent
2007年VOA标准英语（一月）
By Robert Berger Jerusalem 11 November 2006 Rival Palestinian factions say they're close to an agreement on a national unity government that would diminish the powers of the ruling Islamic militant group Hamas. The Palestinians hope such a governmen
2006年VOA标准英语（十一月)
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
2018年科学美国人1月
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
科技之光
By Robert Berger Jerusalem 09 June 2006 At least seven Palestinian civilians have been killed in Israeli shelling in the Gaza Strip. Injured girl is treated by medics at hospital in northern Gaza Strip, Friday Israeli artillery shells slammed into a
2006年VOA标准英语（六月）
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
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By Robert Berger Jerusalem 02 September 2006 Tens of thousands of Palestinian government employees, who have not been paid in months, went on strike Saturday. The labor unrest poses a major challenge to the Palestinian government, led by the Islamic
2006年VOA标准英语（九月）