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Manager
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A company plans to develop a prototype weeding machine that [#permalink]
 01 Nov 2006, 09:29
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A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype?
A. There is a considerable degree of variation in shade of color between weeds of different species.
B. The shade of color of some plants tends to change appreciably over the course of their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.
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VP
Joined: 15 Jul 2004
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Go for D
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SVP
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I like A
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Director
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A is my choice
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Manager
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A for me 2
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Manager
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I would go for D too.
A. Weeds come in different shades does not in any way support the ability to differentiate b/w crop and weed.
B. Doesn't necessarily support it
C. Goes against the statement
D. Genetic modification of crops to have the same shade leads to standardization that will enable differentiating b/w crops and weeds
E. Out of scope
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Director
Joined: 23 Jun 2005
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D
A. There is a considerable degree of variation in shade of color between weeds of different species.
- irrelevant. We are concerned with the difference between shades of crops and weeds, not just between the weeds.
B. The shade of color of some plants tends to change appreciably over the course of their growing season.
- weakens.
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
- irrelevant.
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
- CORRECT. Provides a perfect explanation as to how the new technology could be really useful.
E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.
- irrelevant.
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Senior Manager
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My choice is D....
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Manager
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The basis of the argument is that the diff in color between the crops and the weed will guide the weeding machine. If all crops have the same distinctive shade, there will be a marked diff between the crops and the weed.
Hence D.
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VP
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D 2
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Director
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I'm with D gang !
_________________
"Education is what remains when one has forgotten everything he learned in school."
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VP
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One more member in D gang..
_________________
The path is long, but self-surrender makes it short;
the way is difficult, but perfect trust makes it easy.
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Manager
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No doubt, Answer is D =)
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