For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(59) / 评论(0) 分类 国家地理2008年

China sees steady power supply in September BEIJING, Oct. 13 (Xinhua) -- China's power supplies remained steady in September, statistics from the State Electricity Regulatory Commission (SERC) showed. Power plants generated 394.5 billion kilowatt-hou

发表于:2019-01-07 / 阅读(56) / 评论(0) 分类 英语新闻

Food is the body's fuel. Now a study finds that the amount of energy in that fuel can depend not just on its calorie contentbut on how it's prepared. And the research, published in the Proceedings of the National Academy of Sciences, could explain an

发表于:2019-01-08 / 阅读(53) / 评论(0) 分类 Scientific American(十一)月

By Jim Teeple Jerusalem 22 January 2008 Israel has allowed a one-day delivery of food and fuel to the Gaza Strip, partially lifting a nearly week-long blockade of the territory. VOA's Jim Teeple has details from our Jerusalem bureau. Israeli official

发表于:2019-01-08 / 阅读(32) / 评论(0) 分类 VOA标准英语2008年(一月)

Mitsubishi Motors admitted last week to using improper fuel-efficiency testing procedures to present inaccurate fuel consumption rates. The scandal came as a surprise to many. But for Hideyuki Kobayashi, a business law professor at Hitotsubashi Unive

发表于:2019-02-21 / 阅读(59) / 评论(0) 分类 cctv9英语新闻2016年

雅思阅读考试中的多项选择题通常不大会像是非无判断题或Summary 题型那样夺人眼球,赚足口水,引发雅思考生的大肆讨论,因为在各种考试中,多项选择题都是会经常出现的题型之一,这对考

发表于:2019-03-04 / 阅读(77) / 评论(0) 分类 雅思英语