听材料,回答问题。
(1)
What might running too much lead to?
A . Health risks.
B . A Longer life.
C . Weight loss.
(2)
How old were the runners in the research?
A . Over 25.
B . Over 30.
C . Over 35.
(3)
What does the doctor recommend us to do?
A . Avoid over-exercising.
B . Start running marathons.
C . Build a healthy heart.
答案: A
C
A