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三是提升实验室分析要求。在实验室测定环节新增了空白试验要求，对方法检出限和定量限的确定原则、精密度、校正曲线绘制、准确度评价以及平行样分析等核心质控指标的评价内容和要求进行了系统性的变更与细化。
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I suspect rather strongly that premodern people, too, experienced the physical world more acutely than I do, simply because my brain has been stewing in dopamine-spiking stimuli for four decades now, rarely pausing to touch the proverbial grass. Don’t get me wrong: I like the outdoors a lot. But my waking existence is spent mostly indoors in highly artificial spaces, whereas humans have typically spent the vast majority of their time outdoors in nature. Consider my ancestors, who, as best I can tell, were primarily illiterate peasants and smallhold farmers. They spent a significant proportion of their waking hours literally touching grass.
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