2. 外语
  3. A British study found that B vitamins could reduce brain shrinkage in older people with mild memory loss. It showed that B vitam

A British study found that B vitamins could reduce brain shrinkage in older people with mild memory loss. It showed that B vitam

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问题     A British study found that B vitamins could reduce brain shrinkage in older people with mild memory loss. It showed that B vitamins caused an average one-third reduction in brain shrinkage among adults who had troubles remembering.
    Retired Oxford University pharmacology(药理学)professor David Smith was a leader of the study. He praised the use of the vitamins as simple and safe. He also said researchers didn’t yet know if B vitamins could prevent or slow Alzheimer’s disease(老年痴呆症).
    Vitamins are important for good health. These complex organic substances help to carry out chemical changes within cells. If we do not get enough of the vitamins we need in our food, we are at risk of developing a number of diseases.
    Some shrinkage of the brain is thought to happen normally as people grow older. Yet studies have shown a link between a larger shrinkage and Alzheimer’s disease.
    The Oxford researchers say about one in six people over age seventy has problems with mental operations. They say half of these people develop serious loss of mental ability, as in Alzheimer’s disease. Over time, the disease robs people of their memories. Finally, it takes away their ability to care for themselves.
According to the British study, B vitamins could help people who had troubles in______.
选项 A、studying
B、remembering
C、speaking
D、moving
答案B
解析 细节辨认题。由题干中的British study定位到文章第一段。该段提到，B族维生素可以帮助有记忆问题的成年人平均减少三分之一的大脑萎缩，由此可知B族维生素可以帮助记忆有问题的人，故正确答案为B)。
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