OG13 SC 106 的it指代问题，

kingsheart · 发表于 2014-7-29 15:07:02

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.

(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 emission

(C)A technique originally developed for detecting
air pollutants, called proton-induced X-ray
emission, which can quickly analyze the
chemical elements in almost any substance
without destroying it,

(D)A technique originally developed for detecting
air pollutants, called proton-induced X-ray
emission, which has the ability to analyze the
chemical elements in almost any substance
quickly and without destroying it,
(E) A technique that was originally developed for
detecting air pollutants and has the ability to
analyze the chemical elements in almost any
substance quickly and without destroying the
substance, called proton-induced X-ray emission,

Destroying it的it指代什么？觉得ABCD里都没说清楚a

反调戏 · 发表于 2014-7-30 00:25:10

选a吗？指代substance

前面只有substance和technique两个单数名词。如果指代a technique，个么就要用itself

OG13 SC 106 的it指代问题，

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