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Blended Organic-Conventional Farming Could Feed World In rural Maryland, an hour-and-a-half drive from Washington, Bill Mason is tilling his fields to plant organic maize and soybeans. About two-thirds of his 340 hectares are organic, but not all of
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1. What's your major in college? 你的专业是什么？ 2. What did you major in? 你的专业是什么？ 3. What are you majoring in? 你的专业是什么？ 4. Why are you so interested in English? 为什么你对英语那么感兴趣？ 5. I t
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