The purpose of writing the article is to______. Which of the following is mentioned as a benefit of walking?

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问题 The purpose of writing the article is to______.
Which of the following is mentioned as a benefit of walking?

选项 A、It is beneficial to your heart and lungs.
B、It helps to build strong upper body muscles.
C、It puts no stress on your joints.
D、It does no harm to the bones.

答案A

解析 细节辨认题。原文第一个小标题下主要讲walking。将题干和选项关联起来,可以更好地进行定位。原文第三段开头明确指出,散步能够改善心脏和肺部的状况。由此可知,A为正确答案。
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