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问题:

[单选,材料题] Which of the following statements is true according to the passage?

A . Most women take walking as their only recreational activity.
B . The study aims to track the health conditions of its subjects.
C . Irregular walking increased the risk of breast cancer in post-menopausal women
D . Walking was the only recreational activity for about half of the women.

参考答案:

  参考解析

【解析】文章第三段Of the women,47%said walking was their only recreational activity.大约有47%的女性说行走是他们每天唯一的活动,因此是大概一半的女性是把行走作为唯一的活动。

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