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Fluid intelligence is the type of intelligence that has to do with short-term memory and the ability to think quickly, logically, and abstractly in order to solve new problems. It   1     in young adulthood, levels out for a period of time, and then   2     starts to slowly decline as we age. But     3          aging is inevitable, scientists are finding that certain changes in brain function may not be.

One study found that muscle loss and the   4     of body fat around the abdomen are associated with a decline in fluid intelligence. This suggests the   5     that lifestyle factors might help prevent or   6    this type of decline.

The researchers looked at data that   7       measurements of lean muscle and abdominal fat from more than 4,000 middle-to-older-aged men and women and   8    that data to reported changes in fluid intelligence over a six-year period. They found that middle-aged people    9   higher measures of abdominal fat    10      worse on measures of fluid intelligence as the  years       11    .

For women, the association may be    12   to changes in immunity that resulted from     excess abdominal fat; in men, the immune system did not appear to be  13   . It is hoped that  future studies could     14      these differences and perhaps lead to different      15      for men and women.

    16   , there are steps you can   17   to help reduce abdominal fat and maintain lean muscle mass as you age in order to protect both your physical and mental    18    . The two    highly recommended lifestyle approaches are maintaining or increasing your    19      of      aerobic  exercise  and  following  a  Mediterranean-style  20   that  is  high  in  fiber  and eliminates highly processed foods.


问题1选项
A.pauses
B.returns
C.peaks
D.fades
问题2选项
A.alternatively
B.formally
C.accidentally
D.generally
问题3选项
A.while
B.since
C.once
D.until
问题4选项
A.detection
B.accumulation
C.consumption
D.separation
问题5选项
A.possibility
B.decision
C.goal
D.requirement
问题6选项
A.delay
B.ensure
C.seek
D.utilize
问题7选项
A.modified
B.supported
C.included
D.predicted
问题8选项
A.devoted
B.compared
C.converted
D.applied
问题9选项
A.with
B.above
C.by
D.against
问题10选项
A.lived
B.managed
C.scored
D.played
问题11选项
A.ran out
B.set off
C.drew in
D.went by
问题12选项
A.superior
B.attributable
C.parallel
D.resistant
问题13选项
A.restored
B.isolated
C.involved
D.controlled
问题14选项
A.alter
B.spread
C.remove
D.explain
问题15选项
A.compensations
B.symptoms
C.demands
D.treatments
问题16选项
A.Likewise
B.Meanwhile
C.Therefore
D.Instead
问题17选项
A.change
B.watch
C.count
D.take
问题18选项
A.well-being
B.process
C.formation
D.coordination
问题19选项
A.level
B.love
C.knowledge
D.space
问题20选项
A.design
B.routine
C.diet
D.prescription
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