[单项选择]
Walk a Quarter-Mile or Die
If you can walk a quarter-mile, odds (可能性) are you have at least six years of life left in you, scientists say. And the faster you can
(1) it, the longer you might live.
While walking is no guarantee of
(2) or longevity (长寿), a new study found that the ability of elderly people to do the quarter-mile was an "important determinant (决定因素)" in whether or not they’d be
(3) six years later and how much illness and disability they would endure.
"The
(4) to complete this walk was a powerful predictor of health outcomes," said study leader Anne Newman of the University of Pittsburgh School of Medicine. "In fact, we
(5) that the people who could not complete the walk were
(6) an extremely high risk of later disability and death. "
Newman and colleagues recruited nearly 2,700 white and African-American men and women aged 70 to 79 to
(7) the walk
A. hence
B. moreover
C. however
D. so
