问题
选择题
Swimming is good _____ our health, but at the same time we mustn't forget the danger. [ ]
A. for
B. at
C. on
D. with
答案
答案：A
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Swimming is good _____ our health, but at the same time we mustn't forget the danger. [ ]
A. for
B. at
C. on
D. with
答案：A