OG12-107 很小的问题

xiaoguolulu · 发表于 2010-9-17 23:56:21

"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 funding uses in medicine, archaoeology, and criminology.

A. 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,
B. Originally developed for detecting air pollutants, having the ability to analyze the chemical elements in almost any substance without destroying it, a technique called proton-induced X-ray emissio

正解是A。我想问A选项里最后的那个it指代什么呀？B又有哪里错误呢？等NN指点！

arthur7997 · 发表于 2010-9-18 00:09:58

substance, i think

soiler · 发表于 2010-9-18 15:15:53

主语前罗列两个修饰，having是修饰technique还是pollutants?
a technique...emissio句中谁是objective?run-on error

OG12-107 很小的问题

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