硫砷化钴

By David Lewis A natural resources watchdog group issued a report Tuesday warning that smuggling and corruption are costing the Democratic Republic of Congo millions of dollars a month in lost revenue

发表于:2018-12-08 / 阅读(114) / 评论(0) 分类 VOA2004(下)--世界经济

AS IT IS 2016-07-29 Congo's Small Miners Fill Hole Left by Big Businesses 刚果小矿工填补大企业留下的洞穴 As large mining companies in the Democratic Republic of Congo are eliminating jobs, government officials are expanding the role of

发表于:2018-12-16 / 阅读(79) / 评论(0) 分类 2016年VOA慢速英语(八)月

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(84) / 评论(0) 分类 cnn2009年(十一)月

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(147) / 评论(0) 分类 60秒科学

Australian Scientists Propose a Telescope to Look Deep Underground Scientists in Australia want to build what they describe as a downward looking telescope to look for mineral wealth under the Earths surface. The telescope is really a project aimed a

发表于:2019-01-03 / 阅读(83) / 评论(0) 分类 2018年VOA慢速英语(十)月

BMW Joins Project to Improve Mining Conditions in Congo German carmaker BMW is exploring ways to improve working conditions at cobalt mines in Congo. 德国车企宝马正在寻找方法以提升刚果钴矿的工作环境。 Cobalt is a hard, shiny

发表于:2019-01-06 / 阅读(74) / 评论(0) 分类 2018年VOA慢速英语(十二)月

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(122) / 评论(0) 分类 2016年VOA慢速英语(十二)月

This show is centered on an in-depth report that concerns child labor, a large African country and the element of cobalt. We're explaining how all those things are tied together. First, the issue of child labor. The United Nations defines this as wor

发表于:2019-01-19 / 阅读(67) / 评论(0) 分类 CNN美国有线新闻2018年7月

[00:00.00]Listening Comprehension (20 minutes) [00:-1.00]Section A [00:-2.00]Directions:In this section,you will hear 10 short conversations.At the end of each conversation,a question will be asked about what was said.Both the conversation and the qu

发表于:2019-01-25 / 阅读(123) / 评论(0) 分类 英语六级听力练习集锦

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(74) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(76) / 评论(0) 分类 英语听力文摘 English Digest

As China Molybdenum announced it was buying one of Africas largest copper mines earlier this month one thing was soon clear: the acquisition was about far more than the red metal. 随着洛阳钼业(China Molybdenum)本月早些时候宣布正在收购

发表于:2019-02-08 / 阅读(97) / 评论(0) 分类 英语新闻
学英语单词
alchemically
alexander mcqueen
anaerobiont
annual abstract of labor statistics
anodize, anodizing
arteria sulci precentralis
backrest height
ball-and-disk in tegrator
bell signal
biocommunication
biopsychospiritual
boyces
British refineries
bronchitic
buckeys
Bullerfish
cgs unit
chromatic audition
citrate-phorphate-dextrose
cold seal pressure vessel
combine with bagging platform
community-source
cultishnesses
cut out switch
cyanoses
cytogenetical
divisional manager
engaged upon
escape hole
express alternate pcb
fine-particle filtration
finish-forging
foreign file
fuel outlet valve
fughettas
gadzinski
genus Nephrops
graphics string
graphite points
great primer
Guéyo
Han Kook
helm right easy
Hydroidea
image-processing system
intoxicateth
joint close
kalansuwa
lead(ii) metaphosphate
lunisolar daily variation
merit index
metapodal shield
minimum-wasted-time rule
musculus subscapularis
N channel MOS(metal-oxide-semiconductor)
nanocomputer
Napier's aldehyde test
nephroerysipelas
noninflated
normal fully-charged condition
obstetrical toads
office-hunter
open sky
order Umbellales
positive force
powder-keg
precipitate recognition
prepaid rent income
pressure reduction valve
productive set
public river
rave iron
requirements vector
rown-wheel
safranines
salzmann
Saturnalia
scarus globiceps
security arrangement
semi-finished product cost
septinary number
Shamgar
shuttlecock ferns
single-to-coincidence count
smilin
staple cereal
stdiobuf
steppenwolf
supporting member
suprapermafrost water
Swertia veratroides
tensility
thrombosis of cerebral cortex
Tori Creek
tow device
trapezoid abrasive tile
truljalia formosa
two way encipherment
unliver
Venae pectorales
Voronezhskiy Zapovednik
water soluble vitamin