2. 外语
  3. A federal advisory panel proposes expanding a national computerized file to permit law-enforcement agencies to track people unde

A federal advisory panel proposes expanding a national computerized file to permit law-enforcement agencies to track people unde

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问题 A federal advisory panel proposes expanding a national computerized file to permit law-enforcement agencies to track people under criminal investigation but have not yet been charged.
选项 A、under criminal investigation but
B、under criminal investigation, but who
C、under criminal investigation, but they
D、who are under criminal investigation, but they
E、who are under criminal investigation but
答案E
解析 Parallelism; Grammatical construction
The sentence describes a proposal to allow law-enforcement agencies to track people who have not been charged with a crime but are under investigation. However, the description of the group is flawed, in that the two defining properties—not having been charged; being under investigation—are not expressed in a parallel form: the verb have been charged lacks a grammatically correct subject.
A The adjectival phrase under criminal investigation, modifying people, is nonparallel to have not yet been charged; the latter is a mere sentence fragment.
B The required parallelism is lacking here. The word but introduces a sentence fragment.
C The required parallelism is lacking here: we have an adjectival phrase, and the coordinate conjunction but introducing what appears to be an independent clause. It is unclear what the antecedent of the pronoun they is.
D The required parallelism is lacking here: we have a relative clause, followed by the coordinate conjunction but introducing what appears to be an independent clause. It is structurally unclear what the antecedent of the pronoun they is.
E Correct. The relative pronoun who has people as its antecedent and introduces a complex relative clause containing two parallel verbal phrases correctly coordinated with the conjunction but.
The correct answer is E.
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