比较而言,目前世界上实施范围最广泛的社会保险是( )
A.失业保险
B.医疗保险
C.工伤保险
D.生育保险
参考答案:C
— Scott has already returned to our town.
— Really? Where _____ you ______ him?[ ]
A. do; see
B. have; seen
C. did; see
可导致骨质疏松的药物,除外()
A.泼尼松
B.左甲状腺素
C.碳酸锂
D.低分子肝素
E.阿司匹林