单词：cobalt(ii) cobalt(iii) sulfide
单词：cobalt(ii) cobalt(iii) sulfide 相关文章
ACT III Here's the bag. 箱子拿来了。 Will he be OK, Dad? 他会没事吗,爸爸? I hope so. 希望没事。 That's it. 对啦。 That's the way. 就这样。 That's it. There. 很好,啊。 Oh,
2008年NPR美国国家公共电台二月
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
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
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
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
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
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
2018年VOA慢速英语(十二)月
21. Never regret. If its good, its wonderful. If its bad, its experience. 21. 不要后悔。如果成功，那是最好；如若失败，也是一段经历。 22. Being busy and being productive are two different things. 22. 忙和高产是两码事。
励志英语
21.Being busy and being productive are two different things. 忙忙碌碌和工作高效是完全不同的两码事。 22.Being happy and being successful are two different things. 幸福和成功是完全不同的两码事。 23.We all have differen
励志英语
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
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
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
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
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
英语听力文摘 English Digest
C McGill Comedy Club Important meeting today. Discussions on putting on Blazing Saddles.Union room 302, 3-4 pm. New members(both actors and non-actors, living and dead )are welcome. History Students'
实用英语
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
英语新闻
TAIYUAN, Jan. 9 (Xinhua) -- China successfully launched the Ziyuan III satellite Monday from the Taiyuan Satellite Launch Center in northern Shanxi province. The satellite, a high-resolution remote-sensing satellite for civilian use, was launched at
英语新闻
E HOW TO BOOK Booking opens for Beckett Shorts on 8 September. BY TELEPHPNE For credit card ( 信用卡 ) bookings. Calls are answered. BOX OFFICE 01789 295623 9am 8pm(Mon-Sat) 0541 541051 (24hours, 7
实用英语
D You are what you eat. This saying has provided scientists with clues(线索)about the diet of hominids- our early relatives of 3 million years ago. Studying carbon atoms(碳原子)locked up in tooth
实用英语
C I’m seventeen. I had worked as a box boy at a supermarket in Los Angeles. People came to the counter and you put things in their bags for them. And carried things to their cars. It was hard work.
实用英语