Paragraph Comprehension第 39 / 120 题
Regular exercise strengthens the heart. A stronger heart pumps blood more efficiently, which can lower a person's resting heart rate over time. The passage states that a stronger heart:
a.beats faster at rest
b.requires more oxygen
c.pumps blood more efficiently
d.shrinks in size
解析
The passage explains that a stronger heart pumps blood more efficiently and can lower the resting heart rate. That matches the correct choice, while the others contradict the passage.
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