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参与互动不过，中国官方媒体北京时间19日报道，参加中美经贸磋商的有关人士透露，此次磋商是“积极的、建设性的、富有成果的”。曾经他听闻，在缺水的甘肃，有农业学家帮本地农民开发出了双层地膜，在土地铺上两层地膜，目的是帮助干旱的土地锁住水分，以便种植更多的玉米。这个项目拿下了课题，最终“各方满意”“皆大欢喜”。
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