复方丹参滴丸

SSS 2008-02-04

This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's

发表于:2019-01-08 / 阅读(55) / 评论(0)

Scientific American(二)月

VOA慢速英语 2007 1003a

This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav

发表于:2019-01-11 / 阅读(49) / 评论(0)

VOA慢速英语2007年（十）月

生活英语听力文章第48期:复合效果(1)

Hi!everybody, this is Tod Smith with Little Things Matter.The title of today's lesson is The Compound Effect 大家好。我是托德史密斯为您讲述小事也重要。今天的题目是复合效果 In todays lesson you will learn one of the prin

发表于:2019-01-18 / 阅读(28) / 评论(0)

生活英语听力文章

Rio in Formula 1 bid

RIO DE JANEIRO, Nov. 10 (Xinhua) -- Rio de Janeiro mayor Eduardo Paes is reportedly preparing a bold proposal to bring Formula 1 to the Brazilian city. Paes is seeking talks with Formula 1 CEO Bernie Ecclestone about the prospect of making Rio Brazil

发表于:2019-02-05 / 阅读(101) / 评论(0)

英语新闻

一次咳嗽会产生2万个病毒

一次咳嗽会产生2万个病毒 The next time you cough or sneeze, there is good reason to cover your mouth. As many as 20,000 viruses are expelled in an average cough, which may be sufficient to infect many people - particularly those who are not

发表于:2019-02-05 / 阅读(45) / 评论(0)

实用英语

经济学人236:金属,自己愈合吧 Metal,heal thyself

Metal, heal thyself 金属，自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学：研究人员构想出了一种新颖独特的方法，

发表于:2019-02-17 / 阅读(57) / 评论(0)

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