Doppler - alimad : GMAT Verbal Section
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20 Sep 2006, 06:09

Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy.

A. Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy.

B. Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device.

C. Detecting fetal heartbeats by the twelfth week of pregnancy, a physician can use a Doppler ultrasound device.

D. By the twelfth week of pregnancy, fetal heart-beats can be detected using a Doppler ultrasound device by a physician.

E. Using a Doppler ultrasound device, a physician can detect fetal heartbeats by the twelfth week of pregnancy.
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20 Sep 2006, 06:30
Crooked E
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20 Sep 2006, 08:01
Why E...Isnt it out of scope, the argument doesnt talk about the physician.
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20 Sep 2006, 08:21
punnu_mba wrote:
Why E...Isnt it out of scope, the argument doesnt talk about the physician.

scope is only for critical reasoning and to some extent reading comp. as for this, it's all about modifiers.
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20 Sep 2006, 09:16
Yes (E) it is coz somebody's got to be using the doppler.
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20 Sep 2006, 11:25
E....

"Using a Doppler ultrasound device," must be followed by the subject it modifies.
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20 Sep 2006, 18:56
Sure E
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20 Sep 2006, 21:14
Vote for E
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21 Sep 2006, 00:28
E it is...

A. Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy. - modifier error.WRONG

B. Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device.- modifier error.WRONG

C. Detecting fetal heartbeats by the twelfth week of pregnancy, a physician can use a Doppler ultrasound device. -Akward. The meaning of the sentence also changes.WRONG

D. By the twelfth week of pregnancy, fetal heart-beats can be detected using a Doppler ultrasound device by a physician. - modifier error.WRONG

E. Using a Doppler ultrasound device, a physician can detect fetal heartbeats by the twelfth week of pregnancy. - CORRECT
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21 Sep 2006, 07:44
A subject needs to be there to modify. It's not there so we need to add Physician.

Dangling modifier type SC problem - Refer Manhattan SC
21 Sep 2006, 07:44
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