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# Pioneered by scientists at Los Alamos National Laboratory,

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Manager
Joined: 04 Oct 2006
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Pioneered by scientists at Los Alamos National Laboratory, [#permalink]

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20 Oct 2006, 21:34
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Pioneered by scientists at Los Alamos National Laboratory, BEAM robots are not programmed to walk; instead they use brainlike circuits called neural networks to learn to walk through trial and error.

A)

B) BEAM robots learn to walk through trial and error by using brainlike circuits called neural networks instead of by programming them

C) BEAM robots are not being programmed to walk but instead using brainlike circuits called neural networks and learning to walk through trial and error

D) brainlike circuits called neural networks are used instead of programming for BEAM robots learning to walk through trial and error

E) brainlike circuits called neural networks are being used for BEAM robots that learn to walk through trial and error instead of being programmed
[Reveal] Spoiler: OA

Last edited by ankurgupta03 on 04 Jun 2014, 21:41, edited 1 time in total.

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Re: SC - Los Alamos National Laboratory [#permalink]

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21 Oct 2006, 04:42
brufarber wrote:
Pioneered by scientists at Los Alamos National Laboratory, BEAM robots are not programmed to walk; instead they use brainlike circuits called neural networks to learn to walk through trial and error.

A)

B) BEAM robots learn to walk through trial and error by using brainlike circuits called neural networks instead of by programming them

C) BEAM robots are not being programmed to walk but instead using brainlike circuits called neural networks and learning to walk through trial and error

D) brainlike circuits called neural networks are used instead of programming for BEAM robots learning to walk through trial and error

E) brainlike circuits called neural networks are being used for BEAM robots that learn to walk through trial and error instead of being programmed

A
For me the close ones were A and E. The question is what was pioneered by the lab - the BEAM robots or the neural chips? The original seems to favor the former, leading my conclusion.

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21 Oct 2006, 04:47
A

B) BEAM robots learn to walk through trial and error by using brainlike circuits called neural networks instead of by programming them

C) BEAM robots are not being programmed to walk but instead using brainlike circuits called neural networks and learning to walk through trial and error

D) modifier problem
E) modifier problem

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21 Oct 2006, 07:04
4/4 100% accuracy, impressive!!!
OA is A.

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21 Oct 2006, 08:17
GMAT just loves to test our knowledge of the semicolon.

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Re: SC - Los Alamos National Laboratory [#permalink]

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21 Jun 2010, 11:20
I am confussed here. B is the more parallel for me.
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Re: SC - Los Alamos National Laboratory [#permalink]

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22 Jun 2010, 09:05
What THEY represents here in A - scientists or robots?
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05 Jan 2011, 12:20
GMATT73 wrote:
GMAT just loves to test our knowledge of the semicolon.

A sentence after a semicolon must by independent and "instead bla bla bla..." is not.

Thoughts on that?
Thanks!
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Re: SC - Los Alamos National Laboratory [#permalink]

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06 Jan 2011, 04:29
why?
"Instead" is not a subordinator. In A, you have a subject (they) and a main verb (use)
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Re: Pioneered by scientists at Los Alamos National Laboratory, [#permalink]

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18 Jan 2012, 03:37
I also picked B rather than A for the same reason that 'instead' make it Independent clause. Gt it now...Do we have some other words like 'instead' that doesnot make any difference to independent clause

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Re: Pioneered by scientists at Los Alamos National Laboratory, [#permalink]

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04 Jun 2014, 16:45
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Pioneered by scientists at Los Alamos National Laboratory, [#permalink]

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04 Jun 2014, 17:00
A!

DE: Wrong; BEAM Robots is the intended noun for the modifier.
B: Wrong; BEAM Robots can't program their own circuits
C: Wrong; "instead...error" is not an independent clause

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Re: Pioneered by scientists at Los Alamos National Laboratory,   [#permalink] 04 Jun 2014, 17:00
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