以下有关网络管理功能的描述中,哪个是错误的?A.配置管理是掌握和控制网络的配置信息

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问题:

以下有关网络管理功能的描述中,哪个是错误的?

A.配置管理是掌握和控制网络的配置信息

B.故障管理是对网络中的故障进行定位

C.性能管理监视和调整工作参数,改善网络性能

D.安全管理是使网络性能维持在较好水平

考点:计算机等级考试网络技术国家计算机三级(网络技术)77
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以下出入境集装箱,哪种情况下需实施卫生除害处理( )。

A.来自检疫传染病或监测传染病疫区的

B.装载危险货物的集装箱

C.携带与人类健康有关的病媒昆虫或啮齿动物的

D.装载废旧物品或腐败变质有碍公共卫生物品的

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人们在安静环境看书时,会感到桌上的座钟声音时强时弱的“嘀嗒”响声,这是()现象,它属于正常注意的稳定性品质特性。

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PAUL’S brother bought him a new car as a Christmas present. On Christmas Eve (前夜), Paul saw a boy walking around the new car, admiring it.

"Is this your car, Mister?" he asked.

Paul nodded. "My brother gave it to me for Christmas." The boy was amazed. "You mean your brother just gave it to you? Boy, I wish...." Paul knew what he was going to wish for — a brother who would buy him a car. But the boy surprised Paul.

"I wish that I could be a brother like that," he said.

Astonished, Paul invited the boy to go for a ride in the new car.

After a short ride, the boy said, "Would you mind driving in front of my house?" Paul thought the boy wanted to show the car to his neighbors. But Paul was wrong again.

The boy ran up the steps of his house. Soon he came back carrying his crippled (残废的) little brother. He pointed to the car. "Look!" he said to the little boy. "His brother gave him that car for Christmas. Some day I’m gonna give you one just like it!"

Paul got out and lifted the little boy into his car. The older brother climbed in beside him and the three of them went on a wonderful holiday ride.

That Christmas Eve, Paul learned how good it felt to give.

53. Paul’s brother gave him ___ as a Christmas present.

A. a suit                             B. a car                       C. a bicycle           D. a card

54. When the boy saw the car, he wished that ____.

A. he could buy a car for himself                             B. he had a brother to buy him a car

C. he could buy a car for his brother                  D. he could have a ride in the car

55. When the boy asked Paul the drive the car in front his house, he wanted ___.

A. to show off to his neighbors                         B. his brother to see the car

C. Paul to drive him home                                D. to enjoy a ride in the car

56. The story mainly tells us ______.

A. practice makes perfect                                 B. it is important to make money

C. giving makes people feel good                       D. a friend in need is a friend indeed

题型:单项选择题

将工件准确定位并夹紧,以利于装配和焊接的工艺设备是()。

A.定位器

B.夹紧机极

C.焊接工装夹具

D.夹具

题型:单项选择题

脾切除术可取得明显疗效的疾病是

A.遗传性椭圆形红细胞增多症
B.海洋性贫血
C.遗传性球形细胞增多症
D.丙酮酸激酶缺乏症
E.自体免疫性溶血性贫血

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