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7.(A) To become an expert on a musical instrument, a person must practice. If people practice a musical instrument for three hours each day, they will eventually become experts on that instrument. Therefore, if a person is an expert on a musical instrument, that person must have practiced for at least three hours each day.
Which one of the following most accurately describes a flaw in the reasoning above?
(A) The conclusion fails to take into account that people who practice for three hours every day might not yet have reached a degree of proficiency that everyone would consider expert.
(B) The conclusion fails to take into account that practicing for less than three hours each day may be enough for some people to become experts.
(C) The conclusion fails to take into account that if a person has not practiced for at least three hours a day, the person has not become an expert.
(D) The conclusion fails to take into account that three consecutive hours of daily practice is not recommended by all music teachers.（B）
(E) The conclusion fails to take into account that few people have the spare time necessary to devote three hours daily to practice.
A doesn't describe a flaw in the reasoning because "might not have reached a degree of proficiengy ....
If I change (A) to the following, can A be chosen as the answer?
(A) the conclusion fails to take into account that some people who practice for three hours every day didn't reach a degree of proficiency that everyone would conseder expert.
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发表于 2004-12-18 05:48:00
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