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For nearly a century, physiologists erroneously believed

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For nearly a century, physiologists erroneously believed [#permalink] New post 28 Jul 2012, 23:55
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Difficulty:

  55% (hard)

Question Stats:

61% (02:25) correct 39% (01:17) wrong based on 279 sessions
For nearly a century, physiologists erroneously believed that a buildup of lactic acid in
muscle tissue was responsible for the soreness that many people experience after
strenuous exercise.
The acid, they claimed, is the waste produced by metabolic activity in
the muscle and reaches “threshold” levels, causing soreness, when the muscle has depleted
its oxygen supply. Researchers have recently discovered, however, that lactic acid is
actually the fuel that powers muscular activity.
Therefore, the cause of muscle soreness
remains unknown. In the argument above, the portions in boldface play which of the
following roles?
A) The first is an assertion that the author accepts as true; the second is a consideration in
support of that assertion.
b) The first is an assertion that the author accepts as true; the second describes a situation that
the author posits as contrary to that assertion.
c) The first is an assertion that the author argues against; the second is evidence presented as
contrary to the author’s argument.
d) The first is evidence that the author believes is no longer valid; the second is additional
evidence that the author uses to support his main point.
e) The first is a claim that the author believes to be invalid; the second is the author’s main
point.

Main CR Qs link - cr-qs-600-700-level-131508.html
[Reveal] Spoiler: OA

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Re: CR - BoldFace [#permalink] New post 30 Jul 2012, 10:04
Expert's post
mohankumarbd wrote:
For nearly a century, physiologists erroneously believed that a buildup of lactic acid in
muscle tissue was responsible for the soreness that many people experience after
strenuous exercise.
The acid, they claimed, is the waste produced by metabolic activity in
the muscle and reaches “threshold” levels, causing soreness, when the muscle has depleted
its oxygen supply. Researchers have recently discovered, however, that lactic acid is
actually the fuel that powers muscular activity.
Therefore, the cause of muscle soreness
remains unknown
. In the argument above, the portions in boldface play which of the
following roles?
A) The first is an assertion that the author accepts as true; the second is a consideration in
support of that assertion.
b) The first is an assertion that the author accepts as true; the second describes a situation that
the author posits as contrary to that assertion.
c) The first is an assertion that the author argues against; the second is evidence presented as
contrary to the author’s argument.
d) The first is evidence that the author believes is no longer valid; the second is additional
evidence that the author uses to support his main point.
e) The first is a claim that the author believes to be invalid; the second is the author’s main
point.

Main CR Qs link - cr-qs-600-700-level-131508.html


Red -----> Conclusion

The second one is PRO conclusion. The first one is Against conclusion (or not valid). D it is :)
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Re: CR - BoldFace [#permalink] New post 30 Jul 2012, 15:05
"erroneously believed..." foreshadows how the first boldface part is something that will be disproved, so A and B are out. The second boldface is evidence that leads to the conclusion so C is out. E cannot be correct because the last sentence is the conclusion (keyword: Therefore). Answer is therefore D.
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Re: For nearly a century, physiologists erroneously believed [#permalink] New post 30 Aug 2013, 03:19
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I chose C, because I did not notice the words "as contrary to the author's argument".

A and B are wrong because of the word "erroneously" so the author does not accept it as true.

E is wrong because second is not the author's point, but just evidence to support that point.


I thought that D is wrong because First is not evidence, but a belief (or opinion). The second is not additional, but the only evidence to support author's conclusion.

Nevertheless, since C is wrong, D is the only option, not the best one IMO.
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Re: For nearly a century, physiologists erroneously believed [#permalink] New post 31 Aug 2013, 15:30
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"as contrary to the author's argument"

That would make (c) wrong. The second bold is in the section that goes more along with what the author is arguing for. Not against.

It's contrary to the first point, but not contrary to what the author is trying to say.

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Re: For nearly a century, physiologists erroneously believed   [#permalink] 31 Aug 2013, 15:30
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