单词：cobalt tungsten alloy
单词：cobalt tungsten alloy 相关文章
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
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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
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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
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[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
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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
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