防火墙的设计类型大体分为()。A、阻断型防火墙 B、防御级防火墙 C、应用级防火墙 D、网

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问题:

防火墙的设计类型大体分为()。

A、阻断型防火墙

B、防御级防火墙

C、应用级防火墙

D、网络级防火墙

考点:计算机操作员考试计算机操作员高级计算机操作员高级题库
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His first fight was for the equal rights of black people in South Africa. Then, as the first black president he fought to unite the country and organize the government. Now Nelson Mandela has set his sights on a new enemy, AIDS.

On March 19 the 82-year-old, former president, hosted his second AIDS-awareness concert. He warned that 25 million people in Africa were already infected with the fatal disease.

Mandela was born in a small village in South Africa in 1918. He was adopted (收养) by the chief of his tribe (部族) and could have been a chief himself and lived a happy country life.

But he refused to be a chief when his people lived under racial discrimination ( 种族歧视). He decided to fight for equal rights for all the people in South Africa. Before 1990, under the country’s Racial Segregation Law (种族隔离法), colored and white people lived separately. Black people were treated unfairly even when taking a bus. Blacks had to stand at the back of the bus to make room for white people even when there were only a few of them on board.

For his opposition (反对) to the system Mandela was arrested (被捕) and spent 27 years in prison. He was freed in 1990 and become the president of the country after the first elections were held in which everyone could vote.

Mandela was not only a political fighter who attacked with speeches. He was also a trained boxer (拳击手) and fought in the ring when he was young.

“ Although I did not enjoy the violence of boxing, I was interested in how one moved one’s body to protect oneself, how one used a strategy both to attack and retreat (撤退),” he wrote in his autobiography.

As a skilful fighter, he chose music as his weapon against AIDS. He hopes to win another victory against AIDS.

小题1:Nelson Mandela succeeded in doing the following except _____.

A.winning the equal rights for the black people in South Africa

B.uniting South Africa

C.organizing a government in South Africa

D.controlling the spread of AIDS小题2:If Nelson Mandela hadn’t fought against racial discrimination, he _____.

A.could easily have been the president of South Africa

B.could still have lived a happy life

C.could have been in a difficult situation

D.would have been an excellent boxer小题3:It can be inferred that Nelson Mandela _____.

A.continues to help the black people with the political struggle

B.is taking a position in a music group

C.is taking on the world’s greatest fight against AIDS

D.is preparing for the next election of president小题4:Which statement can best describe the life of Nelson Mandela?

A.Struggle is his life.

B.Sports make his fame.

C.Fight for equal rights.

D.Great fighter against government.

题型:多项选择题

名录按收录类型分类不包括下列哪项()。

A.机构名录

B.地名录

C.单位录

D.人名录

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一份保函只能对应一个额度,否则保函无法解除。

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()是将接触网上不同相位的电能隔离开,以免发生相间短路,并起机械连接作用,使接触网成为一个整体。

A.电分段

B.电分相

C.锚段关节

D.锚柱

题型:多项选择题

Windows操作系统中受限用户在默认的情况下可以访问和操作自己的文件,使用部分被允许的程序,一般不能对系统配置进行设置和安装程序,这种限制策略被称为“()”。

A.特权受限原则

B.最大特权原则

C.最小特权原则

D.最高特权原则

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