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题库 / GMATLA-CR-16
For most people, the left half of the brain controls linguistic capabilities, but some people have their language centers in the right half. When a language center of the brains is damaged, for example, by a stroke, linguistic capabilities are impaired in some way. Therefore, people who have suffered a serious stroke on the left side of the brain without suffering any such impairment must have their language centers in the right half.
Which of the following is an assumption on which the reasoning in the argument above depends?
No part of a person's brain that is damaged by a stroke never recovers
Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.
Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.
If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages at least one of them.
It is impossible to determine which side of the brain contains a person's language centers if the person has not suffered damage to either side of the brain
背景：一些人的语言中心在左脑，一些人的语言中心在右脑。如果一个人的语言中心遭到损坏，那么他的语言能力会受到损害。因此，如果一个人左脑中风了，但是其语言能力没有收到损害，那么这个人的语言中心一定是在右脑。找假设？
排除可能性：即这个人语言中心可能在左脑，只不过中风没有损害其语言中心。D取非
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