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问题 单项选择题 A型题

女，37岁，心烦不寐，入睡困难，心悸多梦，头晕耳鸣，腰膝酸软，潮热盗汗，月经不调，舌红少苔，脉细数。其治疗宜选用（）

A.酸枣仁汤

B.琥珀多寐丸

C.六味地黄丸合交泰丸

D.朱砂安神丸

E.养心汤

答案

参考答案：C

单项选择题 A型题

前葡萄膜炎的诊断至少必须具备的体征是（）

A.睫状充血

B.虹膜后粘连

C.前玻璃体内细胞

D.房水闪辉

E.瞳孔变小
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单项选择题

Networks can be interconnected by different devices. In the physical layer, networks can be connected by (11) or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer. They can accept (12) ,examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer, we have routers that can connect two networks. If two networks have (13) network layer, the router may be able to translate between the packer formats. In the transport layer we find transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message (14) . As an example, gateways between Internet e-mail and X.400 e-mail must (15) the e-mail message and change various header fields.

14（）

A.syntax

B.semantics

C.language

D.format
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