三价铬

[00:09.95]Six weeks ago, the movie Erin Brockovich opened the United States. [00:16.95]So far, it has earned at least 100,000,000 dollars. [00:22.47]It tells a true story about a young woman who helped people in a California town gain money from an e

发表于:2018-12-03 / 阅读(195) / 评论(0) 分类 标准美语发音的13个秘诀 CD4

Could an element commonly found in Americans` tap water caused cancer? A nonprofit environmental group is sounding the alarm about something called chromium-6. The U.S. government says high levels of it in the air can be carcinogenic, meaning they ca

发表于:2018-12-20 / 阅读(161) / 评论(0) 分类 CNN美国有线新闻2017年2月

Help! There's someone hurt! - What are you hearing, Sullivan? - According to first responders it was a bomb. - How many? - Four of yours and five passersby. - Have anyone claimed responsibility? - We found this. - Do you think she's dead? - We can't

发表于:2018-12-28 / 阅读(149) / 评论(0) 分类 英文电影预告片填空

AS IT IS 2013-05-23 Pollution Forces Residents from California Town Hello. Im Jim Tedder in Washington. Welcome to a special edition of As It Is. Seventeen years ago, an American energy company paid hundreds of millions of dollars to settle legal cla

发表于:2019-01-12 / 阅读(161) / 评论(0) 分类 2013年VOA慢速英语(六)月

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(211) / 评论(0) 分类 PBS访谈环境系列

GWEN IFILL: Now NewsHour science correspondent Miles O'Brien begins a two-part look at America's drinking water, and the regulatory system that is supposed to guarantee its safety. His report is the result of a partnership with the Center for Public

发表于:2019-01-27 / 阅读(156) / 评论(0) 分类 PBS访谈环境系列

This is the VOA Special English Development Report. An Afghan girl receives a dose of polio vaccine The World Health Organization has begun to use a new vaccine against polio. Officials say it will become a major tool in the campaign to end a disease

发表于:2019-01-31 / 阅读(145) / 评论(0) 分类 2010年慢速英语(一)月

Why Stainless Steel Does Not Rust But Other Metals Do? 不锈钢(Stainless Steel)指耐空气、蒸汽、水等弱腐蚀介质和酸、碱、盐等化学浸蚀性介质腐蚀的钢,又称不锈耐酸钢。实际应用中,常将耐弱腐蚀介质

发表于:2019-02-24 / 阅读(207) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
aceburic acid
air-coupled
allokenesis
ammonia molecular laser
ash shaar
Asthmalixir
at (the) roots
automatic dimensioning
bar billiards
Bareilly
behavior problem checklist
bottai
bound by precedent
butt-heads
carlens
combustion plant
computational role of Kuhn-Tucker conditions
control lever boot
crataegus oxyacanthas
culler
damperless
defensive ignorance
Ductuslactiferi
Dzhigudzhak
enunciable
Esfandārān
f.o
fallout product
Farabeuf's triangle
faunistically
finite dimensional projective geometry
floorspaces
frigate i. (fregate)
genus Nypa
gracilariid moth
gradient index
half-heartedness
haloing
hebetative
i-swunke
igneous deposit
immigrants
itco
jig
kopikopi (maori)
lerisetron
lightmenter
limit position
lm (layer management)
local coordinates
Los Angeles Air Pollution Control District
lunar exploration
material numerical aperture
medicine man
mesoscale convective system
Mohemed
negative pledge
obround hole
Oil Black
orthogonal gash angle
oscillating vision
peeler-regeneration system
pervious seam
phase pushing figure
phillipines
photoamplifier circuit
pilot left ship
pine needle oil
Pinus monophylla
plushest
posterior obturator tubercle
potted circuit module
Potudan'
predetermined time standard
predominate wind causing motion
public presentation
quollastria imperialis
radium beam unit
rent of foreign equipment
reverse current cutout
sine-bar
skin care products
slump facies
soulster
stand-by buffer
subfamily mimosoideaes
Superior, Laguna
taintment
telomerase activity
throttling process
tornado dust collector
transversely isotropic material
tropaeolin ooo no. 1
true and reliable
tympanal flaccid part
unburthened
v.go
Venetic
wash-and-wear
Weiler-la-Tour
wertheimer
yoo