A.每天≤1.4m,雨天≤1.2m B.每天≤1.8m,雨天≤1.4m C.每天≤1.8m,雨天≤1.2m D.每天≤3.6m,雨天≤2.4m
A.輕錘重?fù)?br /> B.輕錘輕擊 C.重錘重?fù)?br /> D.重錘輕擊