2. 外语
  3. If you want to stay young, sit down and have a good think. This is the research【C1】______of a team of Japanese doctors, who say

If you want to stay young, sit down and have a good think. This is the research【C1】______of a team of Japanese doctors, who say

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问题     If you want to stay young, sit down and have a good think. This is the research【C1】______of a team of Japanese doctors, who say that most of our brains are not getting enough exercise -- and【C2】______, we are ageing unnecessarily soon.
    With a team of colleagues at Tokyo National University, Professor Taiju Matsuzawa【C3】______measuring brain volumes of a thousand people of different ages and【C4】______occupations.
    Computer technology enabled the researchers to obtain【C5】______measurements of the volume of the【C6】______and side sections of the brain, which relate【C7】______intellect and emotion, and determine the human character.(The【C8】______section of the brain, which controls【C9】______functions as eating and breathing, does not【C10】______with age, and one can continue living without【C11】______or emotional faculties. )
    Contraction of front and side parts -- as cells die【C12】______-- was observed in some subjects in【C13】______thirties, but it was still not evident in some sixty and seventy year olds.
    Matsuzawa concluded from his tests that there is a simple【C14】______to the contraction normally associated with age -- using the head.
    The findings show in general【C15】______that contraction of the brain begins【C16】______in people in the country than in the towns. Those【C17】______at risk, says Matsuzawa, are lawyers, followed by university professors and doctors. White collar workers doing【C18】______work in government offices are,【C19】______, as likely .to have shrinking brains【C20】______the farm worker, bus driver and shop assistant.
【C17】
选项 A、less
B、least
C、fewer
D、fewest
答案B
解析 比较级与最高级。此处的意思为患脑萎缩危险最小的人是大学教授、医生和律师。此处表示事情的程度，因此可排除C)、D)两项。
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大学英语四级

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