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石某，女，34岁，阵发性头晕3年，每遇劳累睡眠不佳时，则头晕发作。素日脾胃不好，面色黄白，纳少乏力，头重昏蒙，无旋转，苔白腻，脉濡滑。

本病例的代表方为（）

A.补天大造丸

B.归脾汤

C.月华丸

D.参苓白术散

E.四神丸

答案

参考答案：D

填空题

五棱柱有______个顶点，有______条棱，______个面．
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单项选择题

Both bus and tree topologies are characterized by the use of multipoint （） . For the bus, all stations attach, through appropriate hardware （） known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received fromthe （） . A transmission from any station propagates the length of the medium in both directions and can be received by all other （） . At each end of the bus is a （） , which absorbs any signal, removing it from the bus.

Both bus and tree topologies are characterized by the use of multipoint（）.

A．medium

B．connection

C．token

D．resource
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