----Walking is legs and hearts.---Yes, we should often walk.A.bad forB.good forC. good at

发布时间：2020-08-22 04:15:34

----Walking is     legs and hearts.
---Yes, we should often walk.
A.bad for    B.good for    C. good at 

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解析：根据下文的回答Yes, we should often walk.，说明be good for，表示对···有好处。故选答案为B
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