[化] 亚氨基甲酰氯; 氯甲亚胺

GWEN IFILL: Drugmaker Mylan has been under heavy fire for its soaring price hikes for EpiPens, the lifesaving necessity for those with serious allergic reactions. Its price has skyrocketed to as much as $600 for a set of two. At first, Mylan offered

发表于:2018-12-05 / 阅读(118) / 评论(0) 分类 PBS访谈健康系列

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(97) / 评论(0) 分类 VOA标准英语2014年(六月)

By Paula Wolfson Washington 07 July 2006 President Bush says the seven missile launches this week by North Korea provide an opportunity for the world to come together to deal with Pyongyang's nuclear ambitions. The president says he is optimistic di

发表于:2019-01-04 / 阅读(144) / 评论(0) 分类 2006年VOA标准英语(七月)

By Bill Rodgers Washington. D.C. 29 March 2006 watch Civil War report A grieving widow touches her husband's coffin as it is carried to a cemetery The continuing sectarian violence in Iraq has raised

发表于:2019-01-06 / 阅读(183) / 评论(0) 分类 2006年VOA标准英语(三月)

By Scott Stearns White House 21 March 2006 President Bush President Bush says there is more fighting ahead in Iraq, but he is confident U.S. troops will be victorious. Mr. Bush held a White House news

发表于:2019-01-13 / 阅读(152) / 评论(0) 分类 2006年VOA标准英语(三月)

Libyans Optimistic on Democracy, Challenges Loom In the first blush of enthusiasm after the nine-month struggle to oust Moammar Gadhafi, many Libyans are optimistic that the country will be able to move toward democracy with little payback for the ir

发表于:2019-01-13 / 阅读(106) / 评论(0) 分类 VOA标准英语2011年(十一月)

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(86) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(136) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(98) / 评论(0) 分类 自然百科2009年

Hi! This is Stever Robbins, host of the Get-it-Done Guys Quick and Dirty Tips to Work Less and Do More. Grammar Girl is working on her book this week and since I do a lot of public speaking, she asked me to talk about how to use similes and metaphors

发表于:2019-01-30 / 阅读(158) / 评论(0) 分类 英语语法 Grammar Girl

By Mohamed Elshinnawi Washington, D.C. 07 March 2006 watch IAEA report A defiant Iran warned the International Atomic Energy Agency that it would press ahead with uranium enrichment if the agency push

发表于:2019-01-31 / 阅读(127) / 评论(0) 分类 2006年VOA标准英语(三月)

By Margaret Besheer Washington 09 May 2006 Iraq's Prime Minister-designate Nouri al-Maliki talks to reporters during a news conference in Baghdad, Tuesday, May 9, 2006 Iraq's Prime Minister-designate,

发表于:2019-01-31 / 阅读(135) / 评论(0) 分类 2006年VOA标准英语(五月)

By Melinda Smith Washington, DC 12 January 2007 watch Organ Donor report Human tissue for transplant being delivered to a hospital The traffic in human organs for transplantation is a volatile issue in the medical community and among desperately ill

发表于:2019-02-02 / 阅读(148) / 评论(0) 分类 2007年VOA标准英语(一月)

今天我们要学的词是,limited。 Limited, 是有限的意思。拉美裔移民在维吉尼亚州的王子威廉姆斯县罢工一天,The one-day work boycott appeared to have a limited effect on businesses in the county. 但似乎并没有对

发表于:2019-02-03 / 阅读(94) / 评论(0) 分类 英语单词荟萃

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(86) / 评论(0) 分类 地道美语播客

Iraq's electoral commission has announced the preliminary results of last weekend's provincial elections, amid some accusations of irregularities and voting fraud. The Iraqi army and security forces, however, say that they will maintain order despit

发表于:2019-02-06 / 阅读(70) / 评论(0) 分类 VOA标准英语2009年(二月)

今天我们要学的词是timing。 Timing, 时机。中文里说,赶得早不如赶得巧。英文里说, Timing is everything. 时机决定一切。The timing of his marriage proposal was perfect, 他求婚的时机恰到好处。 目前就业市场

发表于:2019-02-07 / 阅读(80) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是optimistic。 Optimistic乐观的。美国第二季度国内生产总值公布后,President Barack Obama said he is 'guardedly optimistic' about the direction of the U.S. economy, 美国总统奥巴马表示,他对美国经

发表于:2019-02-18 / 阅读(64) / 评论(0) 分类 英语单词荟萃

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(160) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
acesulfame
active workshop
actual growth curve
analogy digital computer
arbitration system
Arthur Rackham
asphalt based solidification
atom polarization
audit matter
autotomographic
balanced of nature
bar-resto
beavertail antenna
betrim
bio-methane
black-and-white reproduction
bow thruster
bracteole
bread-and-butter pickles
chance correlation
CHMD
colletotrichum euryae
colways
consubstantiator
cooing phase
cosmic censorship hypothesis
curacao peel
cyclopes
database object
defrauded investor
Dholan
dseg
economic operation of power system
effective combat ceiling
equipment ordering
evocatory
exaugurate
fibrilized
flooring paper
foxings
full tide
geodesic coordinate system
gongylodes
Harden-Young equation
Harpoceras
ileocolitis
keyworth
law of proportionality of strain to stress
Ligularia paradoxa
lithium diisopropylamide (lda)
LTBP
maximally flat amplitude characteristic
measurement tonnage
mechanism of literary society
microinjector
microlithology
molasses raisin bread
monomycelial
morphophonemic alternation
mulomedic
multi-amplitude minimum shift keying (mamsk)
nitrokalite (niter)
Orleanais
passband ripple
passivizes
phase structure function
phase-rotation relay
precision-engineering
proctosigmoid
queuing behavior
register recall ( timed loop open)
rhamnite
romanuss
santorum
scaffold ledger
secular rate
Shag Pt.
ship registration system
Slyudyanka
smurfier
somatosensory nerves
specified testing pressure
St-Germain-Chassenay
standard measuring device
sternal spatula
strigillosa
strip cleaning machine
substituted executor
tapping hole
tax cart
toparchies
travelling-stay
tyre-trueing machine
umbo membran? tympani
variety degeneration
vertical layout of production areas
Vizcaya, Prov.de
wage function
waste-paper baskets
work in progress
zero-capacity