选择反应

SSS 2008-01-31

This is Scientific Americans' 60-Second Science. Im Steve Mirsky. Got a minute? The search for alternative fuels to gasoline has led to surprising possibilities, for instance, the waste oil for making French fries. But one of the most unusual alterna

发表于:2018-12-24 / 阅读(40) / 评论(0)

Scientific American(一)月

86.Respones

Frequent hand-washing in my job as a medical technologist and the harsh Alaskan weather combined to give me very dry skin. One night as I prepared for bed, I rubbed my hands with petroleum jelly and c

发表于:2019-01-03 / 阅读(48) / 评论(0)

英汉幽默故事选读

Tres Chicas' Sweetwater Offers Country Fans Alternative Root

By Katherine Cole Tres Chicas is a rarity on the music charts: A vocal group in which all three singers are frontwomen in their own right. And don't get ready to rumba, because despite their Latin nam

发表于:2019-01-07 / 阅读(59) / 评论(0)

VOA2004（下）--文化艺术

Alternative Education

By Jerilyn Watson Broadcast: July 17, 2003 This is Bill White with the VOA Special English Education Report. Some young people in the United States attend 1)alternative schools. These are schools that

发表于:2019-01-20 / 阅读(131) / 评论(0)

VOA2003（下）-教育与新闻

Respones

发表于:2019-02-04 / 阅读(57) / 评论(0)

趣味英语

学个词 Learn a Word-VOA英语教学 2810 alternative

今天我们要学的词是 alternative. Alternative 作为形容词，意思是另外的，可以用于替代的。Stephen Hawking predicts that planet Earth will only survive another 100 years, and it's urgent to consider an alternative planet. 霍金

发表于:2019-03-07 / 阅读(100) / 评论(0)

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anterior ethmoidal neuralgia