[有机化学] 1-甲氧基-4-丙烯基苯

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(237) / 评论(0) 分类 科技之光

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(224) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(251) / 评论(0) 分类 Scientific American(四)月

一个挪威的喜剧演员二人组,他们主持的脱口秀电视节目在挪威本地有不少忠实观众,而《狐狸叫》原本是他们为了宣传新一季节目开播而制作的宣传歌曲。这首歌犹如童谣的歌词注定了它的

发表于:2019-01-08 / 阅读(254) / 评论(0) 分类 英乐时空

一个挪威的喜剧演员二人组,他们主持的脱口秀电视节目在挪威本地有不少忠实观众,而《狐狸叫》原本是他们为了宣传新一季节目开播而制作的宣传歌曲。这首歌犹如童谣的歌词注定了它的

发表于:2019-01-10 / 阅读(612) / 评论(0) 分类 英乐时空

AS IT IS 2015-09-20 Documentary Shows US, Mexico Fighting Drug Cartels 纪录片:墨西哥打击贩毒集团 A new movie follows two communities -- one in the United States and the other in Mexico -- as they try to stop drug cartels from harming thei

发表于:2019-01-12 / 阅读(209) / 评论(0) 分类 2015年VOA慢速英语(九)月

UN Wants Australia to Take Lead Against Asian Drug Traffic 联合国促澳大利亚带头打击亚洲毒品走私 From VOA Learning English, this is the Health Lifestyle report. United Nations officials say they have recently seen an increase in the

发表于:2019-01-12 / 阅读(252) / 评论(0) 分类 2016年VOA慢速英语(八)月

Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the

发表于:2019-01-13 / 阅读(275) / 评论(0) 分类 VOA标准英语2012年(六月)

UN:MethUseSurginginSoutheastAsia A report by the United Nations Office on Drugs and Crime (UNODC) warns that production and use of synthetic drugs such as amphetamine-type stimulants is widespread and growing globally. The report identifies Southeast

发表于:2019-01-13 / 阅读(200) / 评论(0) 分类 VOA标准英语2011年(九月)

LOURDES GARCIA-NAVARRO, HOST: And now to France, where the polls show a tight race in the upcoming presidential election. Among the subjects dividing the population is membership in the European Union. The EU is still very popular in France, but righ

发表于:2019-01-17 / 阅读(196) / 评论(0) 分类 2017年NPR美国国家公共电台4月

Another Drug Crisis: Methamphetamine Use By Pregnant Women AILSA CHANG, HOST: A new study published today finds that a growing number of women in recent years have been using amphetamines like crystal meth during their pregnancy. The rates of use hav

发表于:2019-01-23 / 阅读(194) / 评论(0) 分类 2018年NPR美国国家公共电台12月

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(201) / 评论(0) 分类 英语博客 A cup of English

Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont

发表于:2019-02-02 / 阅读(213) / 评论(0) 分类 VOA标准英语2010年(二月)

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(250) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(233) / 评论(0) 分类 英语博客 A cup of English

1) G2G = got to go = 我得走了 2) TTYL = talk to you later = 一会儿再聊 3) XOXO 亲亲抱抱

发表于:2019-02-07 / 阅读(402) / 评论(0) 分类 OMG美语

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(224) / 评论(0) 分类 阅读空间

Among the beautiful pictures That hang on Memory's wall, 在那些美轮美奂的画中间挂在记忆墙上的, Is one of a dim old forest, That seemeth best of all; 是古老的森林一抹幽暗,似乎在其中画工最善; Not for its gnarl

发表于:2019-02-11 / 阅读(176) / 评论(0) 分类 美国语文第六册

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(215) / 评论(0) 分类 夏说英语新闻晨读

Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re

发表于:2019-02-21 / 阅读(192) / 评论(0) 分类 环球英语 Spotlight
学英语单词
a-
AANPA
AI - artificial intelligence
albiclass
analog instrumentation
antihyperglycemic
arch soffit
automated operator
bast paper
be taken short
billi condenser
bitrophic
carbolated camphor
cervit
Charles gun
classification rules
coffee-houses
community-property
confederated
cross cap
crothet
cylindrical wave
Department of Housing and Urban Development
dispersed element
down-hill method
ecoscience
emotion-thought
endocrine obesity
epidermoid cyst of testis
Escaut (Schelde)
fallen earthquake
footed tumbler
foramen optic
fps
Fulvomycin
have a crush on him
headgrit
higher nervous activity theory
host remote node entry system
hydraulic reinforcing bar straightening and cutting machine
hydro-reciprocator
hyperperitonitis
immediate air support
impinging on
Intel Virtualization Technology
internal load
intra-plant telephone
kdp crystal
latch-out tabulator key
lay-bed
literal interpretation
LNIB
loft paper
loose-forwards
lox seal
magnetospheric physics
measured data
measuring chemical traits
mughniyeh
multistage distillation
nanomemory
natural value
non-ionic elution
Nunn's gorged corpuscles
obsessions
parm
pipe frame house
plow bottom attachment
pre-surgical
procurest
rabbetting
recoil motion
rectifying junction
rehostability
Rhoeo discolor
right splenic vein
Rossioglossum
rotating disk mill
Secale cereale L.
self-windings
self-world
serviential
sex-ratio spirochete
shaped like a pear
slow-scanning rates
sporular
Stainborough
standard errors
stem chock
storter
suppressed-zero instrument
tea grower
tent-work
thrombo-endarterectomy
thymonucleopolymerase
tracheary element
translucent surface
trim by stern
type bar typewriter
vont
Yankee land