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# During the twentieth century, the study of the large-scale

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Intern
Joined: 12 Apr 2010
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During the twentieth century, the study of the large-scale [#permalink]

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25 May 2010, 04:23
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40% (02:29) correct 60% (01:51) wrong based on 9 sessions

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During the twentieth century, the study of the large-scale structure of the universe evolved from the theoretical to the practical; the field of physical cosmology was made possible because of both Einstein's theory of relativity and the better ability to observe extremely distant astronomical objects.

A)because of both Einstein's theory of relativity and
B)by both Einstein's theory of relativity and
C)by Einstein's theory of relativity and also
D)because of Einstein's theory of relativity and also
E)as a result of both Einstein's theory of relativity and
Intern
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25 May 2010, 04:24
Both Xand Y

here X&Y need to be parallel!!! i mean same tense !!
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25 May 2010, 08:33
So I´ll pick B
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26 May 2010, 00:31
I go for 'B' too. made possible .. and because,as a result seem redundant
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30 May 2010, 17:19
What about A? Is'n it a good choice?
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02 Jun 2010, 08:42
can someone provide a reason for why A and E are incorrect?
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23 Dec 2010, 03:52
The OA is B and the OE states that there are two idioms to be recognized - "made possible by" and "both X and Y"
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Re: Confusing   [#permalink] 23 Dec 2010, 03:52
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