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The new particles produced by CERN’s Large Hadron Collider a

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GMAT Club Legend
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Joined: 07 Jun 2014
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GRE 1: Q167 V156
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The new particles produced by CERN’s Large Hadron Collider a [#permalink] New post 03 Oct 2017, 06:47
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00:00

Question Stats:

84% (00:20) correct 15% (00:32) wrong based on 13 sessions

The new particles produced by CERN’s Large Hadron Collider are __________, lasting a millionth of a billionth of a billionth of a second before disintegrating into photons, quarks, or other particles.
A. ephemeral
B. infinitesimal
C. myriad
D. poignant
E. fleeting
F. countless

[Reveal] Spoiler: OA
Ephemeral, fleeting

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Question: 125
Page: 121-122
[Reveal] Spoiler: OA

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Re: The new particles produced by CERN’s Large Hadron Collider a [#permalink] New post 03 Oct 2017, 08:40
The particles are lasting only few instants of time thus they are "ephemeral" and "fleeting".

Answer A and E
GMAT Club Legend
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Joined: 07 Jun 2014
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Re: The new particles produced by CERN’s Large Hadron Collider a [#permalink] New post 14 Oct 2017, 16:15
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Explanation

Something lasting a millionth of a billionth of a billionth of a second is “very shortlived.” Ephemeral and fleeting have just this meaning. In real life, the particles may be small (infinitesimal), there may be a lot of them (myriad, countless), and they may bring a tear to the eye of a few scientists (poignant), but none of these are indicated by clues in the sentence.

Hence options ephemeral, fleeting are best fit!
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Re: The new particles produced by CERN’s Large Hadron Collider a   [#permalink] 14 Oct 2017, 16:15
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The new particles produced by CERN’s Large Hadron Collider a

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