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在农药残留检测的广阔领域里，每一步的精准都关乎着食品安全与生态环境的平衡。多年来的实践探索，让我深刻理解到，高效、准确的检测方法对于保障农产品质量和人类健康的重要性。一、走进正己烷中敌稗溶液标准物质1

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中国消费者报上海讯记者刘浩）5月23日，记者从上海市交通委执法总队获悉，“货拉拉”网络货运平台在道路严格管控期间，违规发布召车信息、派发订单，为驾驶员从事非法客运、高价载客等违法行为提供网上招客渠道。

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（书院总院）责编 吴斌