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This is the VOA Special English Agriculture Report. These days, if we hear about two different plants being combined, the first thing we think of might is modern biotechnology. But the low-technology process of grafting remains an extremely important

发表于:2018-12-15 / 阅读(51) / 评论(0)

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发表于:2019-01-17 / 阅读(25) / 评论(0)

英国学生科学读本

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I'm Bob Doughty. And I'm Shirley Griffith with EXPLORATIONS in VOA Special English. Today we travel around the world exploring the history of chocolate. Its story begins with a plant whose scientific name, Theobroma cacao, means food of the gods. For

发表于:2019-01-24 / 阅读(46) / 评论(0)

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发表于:2019-01-30 / 阅读(60) / 评论(0)

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Meet Chang Chen-kai, one of a new generation of high-tech farmers in Taiwan. Rather than toiling in the fields, Chang works in an air-conditioned room at a plant factory operated by Taiwanese biotechnology company, ARWIN. It's one of a growing number

发表于:2019-02-02 / 阅读(33) / 评论(0)

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发表于:2019-02-05 / 阅读(18) / 评论(0)

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