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BMAT考試：能力與技巧練習
A group of UK scientists have a rare opportunity to study human brains thanks to the promise of donations of brains after death by some members of a study group. The dissection of these brains and the counting of the numbers of synapses in them may add evidence to the idea of‘cognitive reserve’: when a person gets older, they start to lose some brain synapses, with a negative impact on cognitive function. Those elderly people who have led a‘brain friendly’lifestyle when younger are thought to havecreated extra synapses, mitigating the naturally occurring loss of synapsesthrough age. Adopting a‘brain friendly’lifestyle when younger should make it possibleto retain cognitive performance into old age. Such a lifestyle is thought toinclude reading books, being socially active and physically healthy.
Which one of the following can reliably beconcluded from the information in the above passage?
A ?The loss of brain synapses in old age is due to apoor lifestyle adopted when younger.
B ?On average, those elderly people who have lived a‘brain friendly’lifestyle would be expected to have a highernumber of synapses in their brains.
C ?Deteriorating cognitive performance in old age isstill little understood due to the limited opportunities to study the humanbrain.
D ?Reading, socialising and staying healthy willensure optimum quality of life in old age.
E ?We should all be encouraged to donate our brainsfor medical research after death.
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