特征γ射线照射率

ROBERT SIEGEL, HOST: There are museums, and then, there are wonderfully specific museums. We're talking about such institutions as the American Toby Jug Museum, the German Watering Can Museum and, of course, the U.S. National Tick Museum. All of thes

发表于:2018-12-18 / 阅读(103) / 评论(0) 分类 2017年NPR美国国家公共电台6月

The capital will raise its automobile-emission standards on Friday, making them the strictest in the nation. The Beijing Environmental Protection Bureau said the move is expected to reduce auto pollution by 40 percent to better improve the hazardous

发表于:2018-12-19 / 阅读(71) / 评论(0) 分类 英闻天下

By David McAlary The U.S. space agency, NASA, launched a satellite Saturday that scientists hope will help them locate the sources of mysterious gamma ray explosions, the brightest most energetic burs

发表于:2019-01-03 / 阅读(120) / 评论(0) 分类 VOA2004(下)--健康科技

Diesel fuel in the US and the fumes from diesel engines are about to get a whole lot cleaner. As of today, the Environmental Protection Agency is requiring much of the diesel in the country to have 97% less sulfur in it. It's the start of a project

发表于:2019-01-07 / 阅读(187) / 评论(0) 分类 2006年NPR美国国家公共电台

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? If you're too tired to think straight, it might be because parts of your brain are already asleep at the wheel. A team of neuroscientists from Washington State Unive

发表于:2019-01-08 / 阅读(91) / 评论(0) 分类 Scientific American(十一)月

Using the Right Article What word appears most often in English? It's the, also known as the definite article. Its partner, the indefinite article a, is also among the top 10 most frequent words in English. According to Professor Elka Todeva of the S

发表于:2019-01-12 / 阅读(90) / 评论(0) 分类 2016年VOA慢速英语(三)月

Negotiators at the climate summit in Copenhagen last month failed to agree on a new climate change treaty to replace the current Kyoto Protocol before it expires in 2012. Jonathan Lash is president of World Resources Institute, an environmental polic

发表于:2019-01-13 / 阅读(101) / 评论(0) 分类 VOA标准英语2010年(一月)

India says it is satisfied with outcome of the recent climate summit at Copenhagen, which did not spell out specific targets for reducing carbon emissions. India is hailing the united position adopted by big developing countries at the summit. Anjana

发表于:2019-01-13 / 阅读(105) / 评论(0) 分类 VOA标准英语2009年(十二月)

李华正在兴致勃勃地给Larry将她去看医生的经过,没想到被Larry泼了一盆冷水。李华今天要学两个常用语,TMI和PDQ 。 LL: Oh, Li Hua, that is really TMI. I'm sorry you had to go to the doctor, but I really don't wan

发表于:2019-01-15 / 阅读(74) / 评论(0) 分类 美国之音《流行美语》

By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen

发表于:2019-01-16 / 阅读(114) / 评论(0) 分类 VOA常速英语2007年(十二月)

Briefing a news conference on Thursday, Xie Zhenhua, China's special representative on climate change, said the country is exploring emissions trading mechanisms. China now is piloting emission trading in seven provinces or municipalities, and the wo

发表于:2019-01-19 / 阅读(108) / 评论(0) 分类 2015CRI中国国际广播电台

For our 10th anniversary my wife and I vacationed in Hawaii, where we went snorkeling. After an hour in the water everyone got back on the boat, except for one beautiful young woman and me. As I conti

发表于:2019-01-29 / 阅读(109) / 评论(0) 分类 趣味英语

It seems like everyone is using Twitter these days. You know, sharing little messages with each other on phones and computers. It turns out that all these little messages, if you look at them all at once, become an easy way to find people, news and t

发表于:2019-02-05 / 阅读(71) / 评论(0) 分类 英语万花筒

According to Ric Edelman, author of Ordinary People, Extraordinary Wealth, the purpose of a rsum is not to get a job, it's to get an interviewyou will get the job. A rsum should not list all your skills, but rather tease the employer with your achiev

发表于:2019-02-06 / 阅读(99) / 评论(0) 分类 实用英语

The purpose of a letter of applicationis to help the applicant obtain the job he is interested in. It should state clearly what position the applicant wants, and should tell what his abilities are and what he has to offer. It should provide a quick,

发表于:2019-02-18 / 阅读(124) / 评论(0) 分类 实用英语

1. Tell me about yourself! 对策:Keep your answer to one or two minutes; don't ramble. Use your resume summary as a base to start from.. 2. What do you know about our company? 对策:Do your homework before the interview! Spend some time online

发表于:2019-02-18 / 阅读(140) / 评论(0) 分类 实用英语

China is now on the front lines of efforts to develop energy sources that can balance the goals of sustaining economic growth and protecting the environment. Decisive action is needed to strengthen policy frameworks across the country to reach that g

发表于:2019-02-18 / 阅读(114) / 评论(0) 分类 cctv9英语新闻2015年

The capital will raise its automobile-emission standards on Friday, making them the strictest in the nation. The Beijing Environmental Protection Bureau said the move is expected to reduce auto pollution by 40 percent to better improve the hazardous

发表于:2019-02-21 / 阅读(120) / 评论(0) 分类 英闻天下

有人常会觉得小孩子学语言学得比大人快,为什么呢?因为小孩子学语言不像我们死记文法,苦背单字。他们就是用所谓的pick up,看在什么场合,别人用什么字,就一个一个把它记下来。这样

发表于:2019-03-05 / 阅读(139) / 评论(0) 分类 英语口语

Larry告诉李华他连续几天给他哥哥打电话,可是总也找不到他。 LH: Larry, 你那么急着找你哥哥,有要紧的事吗? LL: No, not really. I just want to chit chat. LH: Chit chat是什么意思啊? LL: To Chit Chat is to t

发表于:2019-03-12 / 阅读(208) / 评论(0) 分类 英语口语
学英语单词
acadimician
acousto-optic Q-switching
Arrée, Monts d'
basic sediment and water
beat voltage
book of records
bremen
broken course
Bygdeträsk
calcium forniate
charging set
circumvolved
Cirsium bracteiferum
coastal accretion
cocave cover
COLOCONGRIDAE
country music
cryogenic bolometer
Curcuma kwangsiensis
deep slot type rotor
diametral vibration
domain closed-loop pole
eco-defense
employment system
eventless
extract product
false social value theory
Fulham china
fused transistor
genus araneas
gingerin
haoma
hexanephric
Homeric Greek
hubei province
hydnaceaes
hydrofluosilicic acids
hydrogey annealing
irregular menstruation hysteroptosis
joint of belt
ketab
Khutora
knitted sweater
knot formation theory
lap-joint
Lappula shanhsiensis
lateral image
less-celebrated
living arrangements
low speed heavy cut
lower blood pressure
macroeconomic theory
man-computer communication
Mangalorean
Mara Reg.
mergansers
metaculture
methyltrimethylolmethane
Molina, Luis de
momlvs
moodscape
multi-entry pulse converter system
nachmen
non-erasable stack automaton
oo-ah
opitmal nutrition
Ornithochilus
overall heat transfer
paper-pattern image
parallel cable
pesoized
power sunroof
pressure tide gauge
propel
push a face
reciprocating air compressor
reouthfully
reproductive behaviour
retreatisms
rill crater
rutgers-newark
saw-dust
secondary ionization constant
secondary ninth
Sitka National Historical Park
soi transistors
Southwest Pacific Basin
squadding
sudden contact
synthetic shellac
tar-paper
to-find
tolerance number of defects
toothed cutter
triple-a
turriculate, turriculated
ultragravity wave
unagented
uredo moricola sawada
vignal's cell
violastre
wetting combustion method