标题: 弱问一道OG上的~ [打印本页] 作者: hatinreality 时间: 2010-3-19 23:59 标题: 弱问一道OG上的~ OG107 几乎全划线我就不全打出来了,正确答案是: Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it, is finding uses in medicine, archaeology and criminology.