题目内容：
听音频,回答下列问题.
A．Exercise. B．Walking.
C．Fruits and vegetables.
参考答案：
答案解析：
单选题：听音频,回答下列问题.
- 题目分类：公共英语一级
- 题目类型：单选题
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B．Walking.
C．Fruits and vegetables.
B．Walking.
C．Fruits and vegetables.
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