问题 问答题 简答题

一代网络发展的具体目标有那些?

答案

参考答案:

下一代网络发展的具体目标主要有:

1)网络必须具备优化的网络结构

网络应具有简洁、清晰的层次结构。层间通过标准接口通信,从而可使系统获得很高的稳定性。同时,为了适应网络融合的要求,也要对网络结构进行优化,以获得很强的可用性。

i.强大的业务能力

2)未来的竞争将集中在业务方面。网络应具有强大和全面的业务提供能力。这种能力不仅指提供业务的种类,更重要的是在提供业务的速度上。

i.

3)综合设备的接入。网络应支持众多的协议,通过这些协议对各种设备进行统一控制,从而最大限度地发挥网络的性能。

4)高效的应用支持系统

为了适应网管计费和认证的特点和要求,应在网络中设置相应的功能服务器,并通过标准接口通信,从而对现有网络中相关的系统功能进行简化。

5)基于策略的设备控制

目前,基于策略的设备控制机制已逐渐成为潮流。通过专门的策略服务器对相关策略进行增加、修改和删除,从而对网络设备的工作过程进行干预。

7)高可靠性和安全性

网络采用分布式结构;电信级的设备可靠性能够保证网络中无单点故障;安全保护机制确保数据传送及业务实现的安全性。

阅读理解

While we are on the subject of crime, our listener question this week comes from Mohamad Firouzi in Iran. He wants to know about the history of Alcatraz Island and the prison that once operated there.

Alcatraz Island is in the harbor of San Francisco, California. It is best known for being a federal prison, which was also called “The Rock.” It was once the most famous prison in America.

Alcatraz was a military prison from the late eighteen fifties until the nineteen thirties. Then it became a federal prison for the country’s worst criminals. These included murderers, bank robbers and kidnappers. One of the main reasons federal officials chose Alcatraz Island to detain these prisoners was because they thought it would be impossible for prisoners to escape.

Cold, deep and dangerous waters surround the island. Also, the distance between the island and San Francisco is too far for most humans to swim. No prisoner was ever officially reported to have successfully escaped.

However, in nineteen sixty-two, three men broke out of the prison. Each man worked very hard at night for many months to cut through the stone wall of his cell. They made false heads out of paper, paint and hair. On the night of June eleventh, the men placed the heads in their beds to make it look as if they were sleeping. Then, the prisoners escaped through the holes in their cells to get to the water. The men were never seen or heard from again. It is believed that they drowned while trying to swim to San Francisco.

The prison closed in nineteen sixty-three because of the high cost of keeping prisoners there and the need for major repairs. The last prisoners were moved to other jails.

In nineteen seventy-two, the United States Congress passed a bill creating the Golden Gate National Recreation Area. Alcatraz Island and the old prison are part of this area.

Each year, more than one million people visit Alcatraz to see the prisoners’ cells and listen to stories about the jail’s history. But unlike the prisoners who once lived there, visitors can escape from the prison whenever they want and return back across the harbor to San Francisco.

小题1:The text mainly tells us________.

A.about the history of Alcatraz Island and the prison there.

B.about the history of Alcatraz Island.

C.about a military prison.

D.about the subject of crime.小题2:Why did federal officials make Alcatraz the most famous prison in America?

A.Because no prisoner successfully escaped from the prison.

B.Because Alcatraz was Alcatraz Island.

C.Because Alcatraz was a military prison.

D.Because cold, deep and dangerous waters surround the island.小题3:Paragraph 5 is written to ________.

A.tell us the three prisoners escaped the prison.

B.prove prisoners couldn’t successfully escape from the prison .

C.tell us how prisoners escaped the prison.

D.tell us the three prisoners could make false heads out of paper, paint and hair.小题4:Now Alcatraz ________.

A.is a place of interest .

B.detains some prisoners.

C.is where the United States Congress is.

D.is still the most famous prison.

开放性试题

胡 * * 同志强调:共建共享是构建和谐社会的必由之路,要把共同建设、共同享有和谐社会贯穿于和谐社会建设的全过程,真正做到在共建中共享、在共享中共建。

某校九年级(1)班的同学积极参加公民教育社会实践活动,体验并践行在共建中共享的理念。他们发现,每逢夏秋季节不少农民便将大量的废弃秸秆(农作物的茎杆)在农田中直接焚烧。焚烧产生的浓烟中含有大量的一氧化碳、二氧化碳、二氧化硫等有毒有害气体,容易伤害呼吸系统;浓烟降低了空气的能见度,对交通构成潜在威胁;焚烧秸秆还容易引发火灾。他们打算建议有关部门制定和实施一项控制和消除焚烧秸杆行为的公共政策。 现请你参加他们的实践活动:

(1)为了让更多的公众支持通过制定和实施一项公共政策,以实现控制和消除焚烧秸杆行为,你准备从哪些方面开展社会实践活动?(提示:可以从上述问题涉及的范围、深度、典型案例、获得公众支持程度等角度回答)

                                                                                                                                                            

                                                                                                                                                             

                                                                                                                                                              

(2)同学们了解到我国现行法律中有助于解决上述问题的有关规定有:

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                         中华人民共和国大气污染防治法(摘要)

第五条 任何单位和个人都有保护大气环境的义务,并有权对污染大气环境的单位和个人进行检举和控告。

第四十一条 在人口集中地区和其他依法需要特殊保护的区域内,禁止焚烧沥青、油毡、橡胶、塑料、皮革、垃圾以及其他产生有毒有害烟尘和恶臭气体的物质。

禁止在人口集中地区、机场周围、交通干线附近以及当地人民政府划定的区域露天焚烧秸秆、落叶等产生烟尘污染的物质。  

除前两款外,城市人民政府还可以根据实际情况,采取防治烟尘污染的其他措施。  

第五十七条第二款 违反本法第四十一条第二款规定,在人口集中地区、机场周围、交通干线附近以及当地人民政府划定的区域内露天焚烧秸秆、落叶等产生烟尘污染的物质的,由所在地县级以上地方人民政府环境保护行政主管部门责令停止违法行为;情节严重的,可以处二百元以下罚款。

同学们认为,上述法律规定对于有效控制和消除“焚烧秸杆”行为起到了一定的作用,但也存在不足。请根据“有效控制和消除焚烧秸杆行为”这一目标评析上述规定。

(3)请你为制定“有效控制和消除焚烧秸杆行为”的公共政策提出建议。(提示:要结合上述研究结果和实践经验,注意建议的可操作性)