E选项og给的解释并不详细。从逻辑表达上和语法上,似乎E选项的(has) remained都可以和前面的have been able to 构成平行结构。sb has been able to do sth and done sth,这样的用法是可以的啊? 请nn帮忙看看。谢谢。
82. In contrast to large steel plants that take iron ore through all the steps needed to produce several different kinds of steel, processing steel scrap into a specialized group of products has enabled small mills to put capital into new technology and remain economically viable.
(A) processing steel scrap into a specialized group of products has enabled small mills to put capital into new technology and remain
(B) processing steel scrap into a specialized group of products has enabled small mills to put capital into new technology, remaining
(C) the processing of steel scrap into a specialized group of products has enabled small mills to put capital into new technology, remaining
(D) small mills, by processing steel scrap into a specialized group of products, have been able to put capital into new technology and remain
(E) small mills, by processing steel scrap into a specialized group of products, have been able to put capital into new technology and remained
The logical comparison here is between large steel plants and small mills. Choices A, B, and C illogically contrast large steel plants with [the] processing [of] steel scrap. Further, in choices B and C remaining is not parallel with put; consequently, it is not clear exactly what is remaining economically viable. The contrast between large plants and small mills is logically phrased in choices D and E, but remained in E is not parallel with put. Choice D, the best answer, uses parallel verb forms to complete the construction have been able to put... and remain.
可以有理解吗?
have 引导been and remained?
thank you
就算remained与have been able to平行的话 邏輯上合理
文法上也不對阿 因為一個釋憲再完成式 一個是過去是 兩個不平行耶
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