镍基合金

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(145) / 评论(0) 分类 新东方背诵文选

今天我们要学的词是source。 Source, 意思是来源。 Social Security is a reliable income source for seniors, 社会保障是美国老年人可靠的收入来源。 Police have received thousands of tips, according to a source close to the

发表于:2019-01-07 / 阅读(55) / 评论(0) 分类 英语每日一词

By Kari Barber Dakar 21 March 2008 In many African countries, few people have access to computers and the Internet. Experts say this is hindering development and preventing students from being able to compete for jobs. At a conference in Dakar this w

发表于:2019-01-07 / 阅读(83) / 评论(0) 分类 VOA标准英语2008年(三月)

Samasource Provides Jobs for Poor Via the Internet The World Bank says 1.3 billion of the world's seven billion people live in extreme poverty, surviving on less than $1.25 a day. Aid organizations have long relied on charitable contributions to help

发表于:2019-01-13 / 阅读(64) / 评论(0) 分类 VOA标准英语2011年(十二月)

Alan, Canada speaker How do I get my news? Well, when I lived in Canada I got my news from primarily watching television and reading the newspaper. But since I moved over to Asia and started using computers more and more I find that I get my main sou

发表于:2019-01-23 / 阅读(125) / 评论(0) 分类 一起闲话英语-English Chitchat

TOKYO, March 4 (Xinhua) -- The International Olympic Committee' s (IOC) Evaluation Commission on Monday kicked off its four-day visit in Japan's capital of Tokyo to assess the city's bid for the 2020 Olympic and Paralympic Games. The Tokyo visit is t

发表于:2019-02-07 / 阅读(46) / 评论(0) 分类 英语新闻