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问题 选择题

2009年3月2日，作为国家开发银行案中第一个出庭受审的贪官，国开行企业局风险管理处副处长胡汉成因受贿550万元，被北京市第一中级人民法院判处无期徒刑。材料表明

①公民在法律面前一律平等  ②任何公民的违法犯罪行为都会受到法律制裁 ③国家在法律实施处罚方面对任何公民都一律平等 ④我国不允许任何人有超越宪法和法律的特权

A．①②

B．①③④

C．①②③

D．①②③④

答案

D

国家官员违法同样受到法律制裁,被判刑,体现了公民在法律面前一律平等, 任何公民的违法犯罪行为都会受到法律制裁, 国家在法律实施处罚方面对任何公民都一律平等, 我国不允许任何人有超越宪法和法律的特权,故全选.

单项选择题

Networks can be interconnected by different devices in the physical layer networks can be connected by (1) 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 (2) 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 (3) 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 (4) . As an example, gateways between Internet e-mail and X.400 e-mail must (5) the e-mail message and change various header fields.

A．syntax

B．semantics

C．language

D．format
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选择题

浓H2SO4和木炭在加热时发生反应的化学方程式是2H2SO4（浓）+C

加热
CO2↑+2H2O+2SO2↑，则12g木炭和足量的浓硫酸反应后生成的气体在标况下的体积为（　　）

A．22.4L

B．44.8L

C．67.2L

D．89.6L
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