单词：iridium trihydroxide
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冀教版高中英语必修二
The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过
侏罗纪搏击俱乐部
US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I
VOA标准英语2015年(八月)
New Yorkers Take Transit Woes in Stride NEW YORK Life regained some semblance of normalcy on Thursday for New Yorkers affected by superstorm Sandy, as public transportation started to come online and millions of people returned to work. But for those
英语新闻
VIENNA, May 9 (Xinhua) -- The Austrian Olympic Committee (OeOC) nominated a further 13 athletes for its 2012 London Olympic Games team on Wednesday, bringing the total to 37 athletes across 12 sporting disciplines. OeOC President Karl Stoss said he p
英语新闻
A radioactive source which went missing four days ago has been found on Saturday evening. An Iridium 192 source, which was used to inspect a Sinopec industrial device in Nanjing by a testing company, had gone missing on Wednesday. Ten people in the s
CCTV9英语新闻2014年05月