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问题 单项选择题 A2型题

女性，26岁，病史不清，昏迷不醒、抽搐来就诊，查体：呼吸困难、皮肤湿冷、瞳孔明显缩小，下列哪种疾病可能性大（）。

A．CO中毒 

B．阿托品中毒 

C．巴比妥类药物中毒 

D．有机磷中毒 

E．脑血管意外

答案

参考答案：D

单项选择题 B型题

载药850种的是（）

A.《本草纲目》

B.《本草纲目拾遗》

C.《新修本草》

D.《经史证类备急本草》

E.《本草经集注》
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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 (71) 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 (72) ，examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer，we have routers that can connect two networks，If two networks have (73) network layer，the router may be able to translate betweenthe 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 (74) ．As an example，gateways between Internet e-mail and X，400 e-mail must (75) thee-mail message and change various header fields．

A．frames

B．packets

C．packages

D．cells
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