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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.
这句话是OG12第107题的正确选项,但是对于这里的which的修饰问题,我存在一点疑问。因为which 修饰的是其前面最近的名词(有介词限定的情况例外),那么这里的which 的用法是否是有问题的呢?如果修饰emission那么逻辑就有问题了。求NN指导啊!!!!
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