票据业务是指以商业票据为交易工具的（）等投融资业务。
A.承兑
B.贴现
C.转贴现及回购
D.再贴现
E.付款
参考答案：A, B, C, D
—Can you tell me ________ the refrigerator?
—Last month. [ ]
A. when did he buy
B. where he bought
C. where did he buy
D. when he bought
既治食积腹痛，又可治疝气痛的药物是（）
A.麦芽
B.谷芽
C.神曲
D.鸡内金
E.山楂
