11. When a person is under intense psychological stress,
his or her cardiovascular response is the same as it is
during vigorous physical exercise. Psychological
stress, then, must be beneficial for the heart as is
vigorous physical exercise.
The argument above relies on which of the following
assumptions?
(A) Exercise is an effective means of relieving
psychological stress.
(B) The body's short-term cardiovascular response
to any activity indicates that activity's long-
term effect on the body.
(C) Cardiovascular response during an activity is an
adequate measure of how beneficial the activ-
ity is for the heart.
(D) Psychological stress can have a positive effect
on the body.
(E) Vigorous exercise is the most reliable method of
maintaining a healthy heart.
我选e,答案是c,不明白阿
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