OG12SC-107 中it的问题（已解决）

mooosa

107. 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,

正确答案是A。

不是很懂A中  it  指的是什么，看帖子都说是substance，为什么我觉得可以指代为technique...= =  求NN解答！！

cheshou

不可以指代technique， 指代substance。定语从句修饰技术的名称，含义上破坏技术也不合理。

这种技术可以分析substance的化学成分而不破坏substance。

mooosa

从逻辑上我可以理解，但是语法上还是有点晕。。。without destroying it里面的destroying的主语是technique吗？为什么可以是technique？？without destroying it  算不算插入语？！跪求！！谢谢！！

teresalixuan

Without destroying it 不算插入语，without在这里是一个介词，与主句共享一个主语的，如：I help you without asking for any rewards. 所以without destroying it 的主语是which，而which指代前面的proton induced x ray emission, 其实和technology是一回事啦。

mooosa

soga!!明白！！谢谢啊~~