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31 Aug 2019, 06:37
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
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Question Stats:
84% (01:11) correct
16%
(01:30)
wrong
based on 107
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The term "negative feedback" comes originally not from psychology, but from electronics, which uses the term to describe a part of a circuit that detects a positive signal and which, in response, takes action to diminish that signal.
A. which, in response, takes action to diminish that signal
B. which take action to diminish that signal, in response
C. by taking action, in response, to diminish that signal
D. is to take action, in response, to diminish that signal
E. who takes action diminishing that signal in turn
A. which, in response, takes action to diminish that signal
B. which take action to diminish that signal, in response
C. by taking action, in response, to diminish that signal
D. is to take action, in response, to diminish that signal
E. who takes action diminishing that signal in turn
01 Sep 2019, 01:39
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IMO A
Parallel Elements : 1. that detects and which destroys
Only A states these two in parallel.
Parallel Elements : 1. that detects and which destroys
Only A states these two in parallel.
02 Sep 2019, 00:20
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Bunuel
The term "negative feedback" comes originally not from psychology, but from electronics, which uses the term to describe a part of a circuit that detects a positive signal and which, in response, takes action to diminish that signal.
A. which, in response, takes action to diminish that signal
B. which take action to diminish that signal, in response
C. by taking action, in response, to diminish that signal
D. is to take action, in response, to diminish that signal
E. who takes action diminishing that signal in turn
A. which, in response, takes action to diminish that signal
B. which take action to diminish that signal, in response
C. by taking action, in response, to diminish that signal
D. is to take action, in response, to diminish that signal
E. who takes action diminishing that signal in turn
Official Explanation
Creating a filter: in this question, the underlined phrase appears to be defect-free. The phrase starting with "which" refers to "part," as an additional description of the part of the circuit that has been defined by "that detects a positive signal." Choice (A) may be correct, so we'll look for defects in the other choices and come back to it.
Finding objective defects: choice (B) incorrectly uses the grammatically plural verb "take" to refer to the grammatically singular "part." Choice (C) distorts the meaning: it indicates, nonsensically, that this special part of the circuit achieves its detection of the positive signal by diminishing it. Choice (C) is out. In (D), using the infinite with the verb "to be" in this way conveys a semi-moral sense of obligation that is appropriate only for humans and other moral actors. So (D) is out. And speaking of people, (E) uses the relative pronoun "who" as if the circuit were a person.
The correct answer is (A).
