单词:cobalt(ii) sulfide
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American Old-time Radio Classic Favorites A Day at the Races (II) Mary: Hello, Benita! Benita: Hello, Mary. Hello, Jack. Why Ronnie, look who's here! Jack: Hello, Ronnie, aren't you surprised at meeti
[00:01.19] 13.You Are Not Alone [00:04.90]Since I was 12 years old, Ive suffered with a condition called Compulsive Hair Pulling. [00:11.11]The physical devastation was severe, but the emotional damage was worse. [00:17.31]When I was young, no one, i
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
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
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
(MA) Look at our topographical map and you'll see that the middle third of the North American continent --- from the Rocky Mountains almost to the Mississippi River --- is pretty flat. This is the Great Plains. This kind of area is sometimes called
(MA) Scientists are always on the lookout for alternative sources of energy. Today we're going to discuss one that's so plentiful they say it could supply more energy than all the coal and oil in the world. It's found in something called gas hydrate
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
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
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
11. People who are meant to be together will find their way back to each other. They may take detours, but theyre never lost. 11. 命中注定要在一起的人终究会找到通向对方的路。虽然途中可能会走不少弯路,但是他们绝对
11.Having a plan, even a flawed one at first, is better than no plan at all. 先制定计划,即使这个计划还有缺陷也比没有任何计划要好。 12.What you do every day matters more than what you do every once in a while. 每天持之以
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
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
[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
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
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
浸入灵魂的伤感Ivana Spagna ---《Con II Tuo Nome》 意大利女歌手Ivana Spagna演唱的这首曲子令人感到一股莫明的悲伤, 她那高亢浓郁的嗓音似乎不在在意你是否已处悲伤, 仍然用一个个伤感的旋律和自符狠狠的把你推入哀伤与悲凉的旋涡, 似乎这种莫明的伤感已经透入了
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