单项选择题

The doctor's tests show that ______.

A．our brains shrink as we grow older
B．the front section of the brain does not shrink
C．sixty-year-olds have better brains than thirty-year-olds
D．some people’s brains have contracted more than other people’s

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热门试题

单项选择题

On what are their research findings based

A．A survey of farmers in northern Japan.
B．Tests performed on a thousand old people.
C．The .study of brain volumes of different people.
D．The latest development of computer technology.

单项选择题

According to the passage, which people seem to age slower than the others

A．Lawyers.
B．Farmers.
C．Clerks.
D．Shop assistants.