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问题 多项选择题

在香港创业板上市的企业，发行人必须依据（）法律正式注册成立。

A.中国台湾

B.中国内地

C.百慕大或开曼群岛

D.中国香港

答案

参考答案：B, C, D

解析：在香港创业板上市的企业，发行人必须依据中国内地及香港地区、百慕大或开曼群岛法律正式注册成立。

单项选择题 A1/A2型题

患者女，查体见肝脏下移，该患者不可能是（）.

A.右侧大量胸腔积液

B.右下肺炎

C.内脏下垂

D.肺气肿

E.膈肌下降
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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 (64) or Hubs, which just move the bits from one network to an identical net-work. One layer up we find bridgas and swiehes, which operate at data link layer. They can accept (65) , 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 netwoks. If two networks have (66) 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 the two transport connections. Finally, in the application layer, application gateways translate message

(67) . As an example, gateways between Internet e-mail and X.400 e-mail must (68) the e-mail message and change various header fields.

67（）

A．syntax

B．semantics

C．languages

D．format
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