[网络] 英国莱肯希思;肯赫斯;英国累肯赫斯
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SYDNEY: All molecules are not created equal. Some have saved billions of lives, wreaked environmental havoc or made the world a more colorful place. Here's our selection of those that have changed the course of human history。 发自悉尼:分子并

发表于:2019-01-08 / 阅读(37) / 评论(0) 分类 实用英语

You might think the only place to set up a technology company in the United States is California. After all, Northern California has Silicon Valley, which is home to companies like Apple and Google. One expert on new business agrees Silicon Valley is

发表于:2019-01-12 / 阅读(170) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Cast Iron Revival Keeps US Foundry Cooking Tucked between the Tennessee River and the hills of Marion County lies the small town of South Pittsburg, Tennessee. Home to just 3,200 people, it has one claim to fame: a metal foundry called Lodge Cast Iro

发表于:2019-01-13 / 阅读(68) / 评论(0) 分类 VOA标准英语2011年(七月)

And with his colleagues, he did the calculations to prove it. The key was the conditions created in the final stages about massive stars fighting against its gravity. These stars are so massive and hot that they can go through a whole series of nucle

发表于:2019-01-23 / 阅读(58) / 评论(0) 分类 探索与发现2015年

China's iron ore manufacturers say they're struggling to keep their businesses afloat because of high costs and taxes while production is on the rise for the sector's global giants. Brazil's Vale SA is the world's largest iron ore producer and it say

发表于:2019-02-03 / 阅读(82) / 评论(0) 分类 cctv9英语新闻2015年

It is hard to escape the images of Konza City in Kenya. Advertisements promoting the future high-tech hub, or technopolis, appear daily in the country's newspapers and show regularly on the state television network. The ambitious plan is the work of

发表于:2019-02-06 / 阅读(53) / 评论(0) 分类 英语新闻