[医] 硅氟化铵

Prosecutors in South Korea are seeking warrants to examine the assets of those close to Choi Soon-sil, the woman at the center of the country's snowballing political scandal and the confidante of impeached President Park Geun-hye. Around 40 people ha

发表于:2018-11-27 / 阅读(497) / 评论(0) 分类 cctv9英语新闻2017年

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(173) / 评论(0) 分类 Scientific American(十二)月

14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a

发表于:2018-12-07 / 阅读(473) / 评论(0) 分类 英语范文背诵20篇

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(135) / 评论(0) 分类 科技之光

In business, Optus has called for Telstra's proposals on its participation in the national broadband network to be blocked. Optus' chief executive Paul O'Sullivan says Telstra's current plan for the separation of its retail and wholesale arms wholesa

发表于:2018-12-11 / 阅读(135) / 评论(0) 分类 澳洲ABC新闻快递2011年

The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be foss

发表于:2018-12-15 / 阅读(244) / 评论(0) 分类 新东方现代文背诵篇章

Spreading the World… Silbo Style By Susan Zimmerman Discovering an ancient whistling language on a tropical Atlantic island 1 All eyes and ears are upon teacher Isidro Mendoza when he enters the cla

发表于:2018-12-19 / 阅读(134) / 评论(0) 分类 彭蒙惠英语

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(166) / 评论(0) 分类 口腔临床英语对话

5人 Actors: Tavern Keepe:(男主角) Young Man Keeper's Wife(女主角) Young Man Old Man Summary: Once upon a time, there was a tavern. Travelers and hunters would exchange silver ingots for copper coins and eat some food there. The tavern keeper a

发表于:2019-01-08 / 阅读(225) / 评论(0) 分类 英文剧本

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(147) / 评论(0) 分类 VOA标准英语2010年(十)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

发表于:2019-01-20 / 阅读(140) / 评论(0) 分类 2018年科学美国人1月

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(168) / 评论(0) 分类 农业与发展

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(141) / 评论(0) 分类 科技之光

By Scott Bobb Johannesburg 26 November 2007 Organizers of the 2010 soccer World Cup in South Africa are calling Sunday's preliminary draw in the southern city of Durban a success. They say they hope it will put an end to doubts about the African nat

发表于:2019-01-31 / 阅读(125) / 评论(0) 分类 VOA常速英语2007年(十一月)

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

发表于:2019-02-02 / 阅读(133) / 评论(0) 分类 英语单词荟萃

BBC Learning English People and Places Sun Hai Nin SIG Sun Hai Nin: Well, hello everybody Im Hai Nin, Im from China and now Im in London. William:And Im William Kremer welcome to People and Places. You just heard a young Chinese Woman, Sun Hai Nin.

发表于:2019-02-03 / 阅读(422) / 评论(0) 分类 人与地方

极素白极纯净,没有一点尘埃,仿佛天堂的所在。这样美好无暇的颜色却让人刺痛得张不开眼。在这白晃晃的空间里,Silje对着镜头睁大她那毫无表情的瞳孔,低吟浅唱,旁若无人。 我们还是需要一点杂质的,这和我们无法呼吸百分之百的纯氧是一个道理。 My heart's not lonel

发表于:2019-02-04 / 阅读(254) / 评论(0) 分类 音乐咖啡厅

Finance and Economics 财经 Free exchange: Manias, panics and ICOs 自由交流:疯狂,恐慌和ICO Crypto-coin mania illustrates the crazy and not-so-crazy sides of bubbles. 加密货币狂热诠释了泡沫的疯狂一面和不那么疯狂的一

发表于:2019-02-17 / 阅读(183) / 评论(0) 分类 经济学人财经系列

LONDON, Aug. 12 (Xinhua) -- The Mexican delegation for London 2012 Olympic Games had its best performance in over 40 years in the summer games, winning seven medals, including one golden, three silver and three bronze. It is the second best Olympics

发表于:2019-02-18 / 阅读(139) / 评论(0) 分类 英语新闻

MEXICO CITY, July 12 (Xinhua) -- Mexico will go to London 2012 Olympic Games with a 102-athlete delegation together with 109 people including officials, coaches and doctors, Mexican sports authorities said Thursday. Jaime Cadaval, chief of the Mexica

发表于:2019-02-19 / 阅读(137) / 评论(0) 分类 英语新闻
学英语单词
a yard sale
agritourists
anterior articular surface
anterior-pituitary hormone
anuario
Aspergillus concentricus
aurotherapy
banky
Barmecide feast
be sent to jail
Beth-car
binary fertilizer
bipolar devices
Biscayne National Park
blind curved road
brake distributor
bread and butter pickles
butter hardness
by pass engine
by-view
Cajal cell
calcareous clay
cameraderies
cancellarian
cascade entry
check strap guide
Chimonanthus grammatus
clearing stations
continuing trespass
derive their food from other organisms
divider corrector
Erica Jong
ferment odor
fixed frequency oscillator
flapcake
foalskins
General James Wolfe
get somebody down
Goldthwait's symptom
Grossulariaceae
Guaugurina B.
gustav klimts
half speed gear
hatedness
help-desk
heredo-degeneration
hermanniella punctulata
hexyloxy
high dip angle
horon
hypercryesthesia
interspecies
isochemical indication
jewel cases
kokus
konno operation
labor-intensive goods
landed quality
Laue indices
Law Week
lidlessness
likiangense
lithological feature
lumberyards
managerial policies
matricide
mechanically skillful
morphogenetic potential
multicrore
nonconformisms
nonflying
novum organum
organic anion
population universe
Pukeamaru
rattle the cage
recusive filter
retrolaryngeal
rotary-cup oil burner
rubbishing
rupestrian
scavenging compressor
self-organizing function
snobocracy
sodium seconal
Spanish bowline
spark erosion technique
squeazy
steadiness number
sulcus
sulfatoceric acid
tamer
Thayetthabin
thermal sensitive element
Tilia sinensis
tubercle(tuberculum)
unshakenly
unstabilizing factor
vibratile corpuscle
well on the beam
whisk into
winter rose