下列税种中，属于既可适用比例税率也可适用定额税率的是（）。
A．营业税
B．房产税
C．印花税
D．契税
参考答案：C
--- I rang you at about ten, but there was no reply.
--- Oh, that was probably _____ I was seeing the doctor.
A．for
B．why
C．when
D．how
当归的功效是（）
A.补血，止血，止痛，止泻
B.补血，止血，止痛，润肠
C.补血，活血，止血，止泻
D.补血，活血，止痛，止泻
E.补血，活血，止痛，润肠
