搜题请搜索小程序“爱下问搜题”
问题 单项选择题 A3/A4型题

男性，34岁。胆囊结石，拟行胆囊切除术。既往慢性乙型肝炎病史4年。

如果肝功能不良，在术前准备中，不宜采用的药物是（）。

A.GIK（极化）液

B.维生素B、维生素C、维生素K

C.人体白蛋白

D.血浆

E.氢氯噻嗪

答案

参考答案：E

单项选择题

Networks can be interconnected by different devices. In the physical layer, networks can be connected by （66） 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 （67） , 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 （68） network layer, the router may be able to translate between the packet 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 （69） . As an example, gateways between Internet e-mail and X.400 e-mail must （70） the e-mail message and change various header fields.

（73）处填（）。

A．producer

B．customer

C．programmer

D．analyser
查看答案
单项选择题

举办过最多届亚运会的是哪个城市（）

A.曼谷

B.雅加达

C.东京
查看答案