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16 Jul 2018, 02:09
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
80% (00:34) correct
20%
(00:43)
wrong
based on 515
sessions
History
Date
Time
Result
Not Attempted Yet
Federal government financing is an essential key in the survival of the interstate rail system.
A. an essential key in
B. an essential key for
C. essential for
D. essential in
E. essential
A. an essential key in
B. an essential key for
C. essential for
D. essential in
E. essential
16 Jul 2018, 02:24
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+1 for C.
A. an essential key in
B. an essential key for
C. essential for --> Correct, 'essential for' and not 'essential in'
e.g. :
A good strategy is essential for GMAT. Correct
A good strategy is essential in GMAT. Incorrect
D. essential in
E. essential
Hence, C.
A. an essential key in
B. an essential key for
C. essential for --> Correct, 'essential for' and not 'essential in'
e.g. :
A good strategy is essential for GMAT. Correct
A good strategy is essential in GMAT. Incorrect
D. essential in
E. essential
Hence, C.
16 Jul 2018, 05:53
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Key itself means essential. Therefore, essential key is redundant. A and B are gone. The correct idiom is 'essential for.' Therefore D and E are gone. C is the correct
