被称为"西医之父"的医学家是（）
A.迈蒙尼提斯
B.帕茨瓦尔
C.阿维森纳
D.希波克拉底
E.胡佛兰德
参考答案：D
----I have tried very hard to find a solution to the problem, but in vain
----why not consult with Frank? You see, _________.
A．great minds think alike
B．two heads are better than one
C．a bird in the hand is worth two in the bush
D．it’s better to think twice before doing something
ZXA10 C220设备的组播业务是属于二级组播，先是PON设备中的（）的组播，然后是PON的（）将组播业务组播到相应的用户。
A.接口板
B.交换板
C.ONU
D.OLT
