c谩 c瓢峄 b贸ng 膽谩
参与互动蒋高明注意到，为了解决这一问题，许多人甚至采用了“膜中膜”的方法，大棚盖一层膜，地上再铺一层，为的是不让水分流失，可这样的密封环境会活活地把土壤里的微生物憋死，最终演变成脆弱的生态系统。
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而那些染病、使用过量化肥和农药的作物去了哪儿？蒋高明说，“最后都上了城里人的餐桌。”
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经济新闻精选：
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