盐酸黄连素片属于（）
A.咀嚼片
B.包衣片
C.口含片
D.舌下片
E. * * 片
参考答案：B
Ball had ___ one-sided view that his wife had been a spy of ___ European country.
A．a ,a
B．an, an
C．a, an
D．an, a
下列标的中，( )不属于我国已经上市交易的期货品种
A．沪深300指数
B．锌
C．硬麦
D．合成橡胶
