行政指导通常采用（）的方法。
A.说服
B.教育
C.示范
D.劝告
E.协商
参考答案：A, B, C, D, E
At present, we are studying a total of nine subjects, ________ I think is physics.
A．of them the most difficult
B．and the most difficult of which
C．the most difficult of them
D．the most difficult of which
哌唑嗪的不良反应可表现为（）。
A.低血钾
B.消化性溃疡
C.水钠潴留
D.粒细胞减少
E.体位性低血压
