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标题: LESSON 30 Sun's energy [打印本页]

作者: 星期一 时间: 2011-1-9 13:39 标题: LESSON 30 Sun's energy

listen to the material carefully,although it is difficult and sometime you can't write down the correct answer.As long as you have tried,whatever you write down will be the harvest of yours.You should believe that only by accumulating little by little could you learn English welll.so come on.

Scientists in California have_______________________which mimics plants by transforming the Sun's energy into fuel. With more, here's our science reporter Neil Bowdler.

[audio]http://down02.putclub.com/newupdate/mnjjt/bbc/201101/putclub_20110109BBCjjt.mp3[/audio]

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invented prototype sold devices

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unveiled a prototype of solar device

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evolved a prototype of solar device

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innolved a prototype of solar device

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unvealed a proco-type solar device

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