问题
选择题
Walking after meals is good ______ our ______. [ ]
A. at; health
B. for;. health
C. at; healthy
D. for; healthy
答案
答案：B
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Walking after meals is good ______ our ______. [ ]
A. at; health
B. for;. health
C. at; healthy
D. for; healthy
答案：B