[化] 甲醇钡; 甲氧基钡

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

发表于:2018-12-07 / 阅读(119) / 评论(0) 分类 VOA2003(下)-农业与经济

By Carol Pearson Washington, DC 15 September 2006 watch Meth and Dental Care Methamphetamine Ice Methamphetamine is an addictive drug that can damage brain cells. It is suspected to cause a movement disorder similar to Parkinson's disease. Meth use

发表于:2019-01-07 / 阅读(171) / 评论(0) 分类 2006年VOA标准英语(九月)

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(159) / 评论(0) 分类 Scientific American(四)月

SCIENCE IN THE NEWS - Discovery That Stored Blood Loses a Life-Saving Gas Could Solve Mystery By Lawan Davis, Soo Jee Han and Caty Weaver / Broadcast: Mon, 12 Nov 2007 16:00:00 UTC VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm S

发表于:2019-01-11 / 阅读(159) / 评论(0) 分类 VOA慢速英语2007年(十一)月

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(114) / 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(111) / 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(173) / 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(102) / 评论(0) 分类 VOA标准英语2011年(九月)

AILSA CHANG, HOST: A trade dispute has different parts of the solar industry in the U.S. at odds with one another. Two U.S. manufacturers say they cannot compete with cheap solar panels from China. So they're asking regulators to impose a tariff. Tha

发表于:2019-01-16 / 阅读(109) / 评论(0) 分类 2017年NPR美国国家公共电台8月

DAVID GREENE, HOST: We have been reporting on the rise of some really nasty diseases caused by tick bites - everything from Lyme disease to Rocky Mountain spotted fever. Well, now a new study is shedding light on an old technique to repel ticks that

发表于:2019-01-17 / 阅读(117) / 评论(0) 分类 2018年NPR美国国家公共电台7月

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种,每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

发表于:2019-01-17 / 阅读(117) / 评论(0) 分类 TED演讲教育篇

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(90) / 评论(0) 分类 2018年NPR美国国家公共电台12月

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(100) / 评论(0) 分类 VOA标准英语2010年(二月)

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(87) / 评论(0) 分类 美国语文第六册

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

发表于:2019-02-13 / 阅读(166) / 评论(0) 分类 英语新闻

电脑英语--常见硬件篇CPU:Central Processing Unit,中央处理单元,又叫中央处理器或微处理器,被喻为电脑的心脏。 RAM:Random Access Memory,随机存储器,即人们常说的内存。 ROM:Read-Only Memory,只

发表于:2019-02-15 / 阅读(122) / 评论(0) 分类 天天商务口语

The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in

发表于:2019-02-17 / 阅读(97) / 评论(0) 分类 英语新闻

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(102) / 评论(0) 分类 环球英语 Spotlight

18 The Bounding Main 第十八章 浩瀚的海洋 Imagine trying to live in a world dominated by dihydrogen oxide, 请你想像一下,你能不能生活在一个由一氧化二氢主宰的世界里。 a compound that has no taste or smell and is so

发表于:2019-02-25 / 阅读(156) / 评论(0) 分类 万物简史

A Fresh Breath of Methane 很早很早以前地球有很微量的氧气,而且地表状况十分恶劣。大气主要是N2和Co2,后来通过复杂的变化,地球开始出现了厌氧型生物。在生命的作用下,地球的氧气开始不断

发表于:2019-03-09 / 阅读(134) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
'splodey
Abyyskaya Nizmennost'
acid-labile
Active contour
all-day sucker
anaesthaesias
anticyclonic winds
auditing from trail balance
baby capsules
borrowing potential
brom-
C. S. D.
castor meal
cheer ... up
circadian desynchronization
clean-up fund
cob money
common use terminal equipment (cute)
completest
connecting bridge
cosynes
counterbored hole
crosswind stability test
cymbidium gyokuchin makino
depnes
duty-free zone
encalypta giraldii c. mull.
engaged upon
error of item
evaporating pressure
export advanced system
express sorrow for
fair body line
fixated consumption behavior
fm/pm
free rotor gyro-stabilized inertial reference platform
fried shrimp ball
frog-eyed
fur fiber
gabb
Galanta
george is
get sb.'s number
glovemakers
Graphics Standards
Grinds my gear
hommoss
Ibba
ifscc
image retention time
iridochoroidal
jengkol
job involvement
liquid cubic
made their market of
mcbee
meat-spoilage organism
megawatt hour (mwh)
miles of travel
murried
natrium acetate
naturistically
nematocerous
new issue department
Olympic View
pee-ed
phacelias
playin
plectopheras
potws
pre-Linnean
QA analyst
Ramalina denticulata
roller friction wheel
san feliu de guixols
Sarcoptidae
serpent-
setting basin
shock acceleration acceleration
snotrag
soft surface steel hammer
soulangeana
stenostomatous
survey and tender clause
T.B.P.
thread-stitching
timetable poster
to-reose
tracheopathia osteoplastica
tricolor vidicon
two-speed hysteresis synchronous motor
two-way beam
unrustable
vasoparesis
vector root
venae basivertebrales
what for
Wolowaru
Xiyu Formation
yminted