题目内容
— I can’t stand swimming in cold rivers in winter.
— But it’s ______ for your health. You know I often swim in rivers in different seasons.
A.painful B.harmful C.helpful D.careful
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题目内容
— I can’t stand swimming in cold rivers in winter.
— But it’s ______ for your health. You know I often swim in rivers in different seasons.
A.painful B.harmful C.helpful D.careful