狭义的票据行为包括（）。
A.承兑
B.保证
C.背书
D.清交
E.出票
参考答案：A, B, C, E
—Is that a ___________?
—Yes. There are kinds of beautiful shoes in it.Let's go and have a look.[ ]
A. fruit shop
B. clothes store
C. shoe store
D. book shop
有效成分为牛磺熊去氧胆酸的是（）
A.牛黄
B.熊胆
C.麝香
D.人参
E.蟾蜍
