虚拟局域网是建立在交换技术的基础上,以软件方式实现______工作组的划分与管理。

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问题:

虚拟局域网是建立在交换技术的基础上,以软件方式实现______工作组的划分与管理。

考点:计算机等级考试网络技术三级网络技术笔试
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已知函数f(x)=x3-ax2+bx+c的图象为曲线C.

(1)若曲线C上存在点P,使曲线C在P点处的切线与x轴平行,求a,b的关系;

(2)若函数f(x)可以在x=-1和x=3时取得极值,求此时a,b的值;

(3)在满足(2)的条件下,f(x)<2c在x∈[-2,6]恒成立,求c的取值范围.

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世界的统一性在于它的物质性原理是

A.彻底唯物主义一元论的理论基石

B.一切从实际出发的思想路线的理论基础

C.对世界盼多样性和统一性关系的正确解决

D.马克思主义哲学的首要的观点

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适用于向缺隙方向倾斜基牙的卡环是()

A.Ⅰ型卡环

B.Ⅱ型卡环

C.Ⅲ型卡环

D.A和B均可

E.A和C均可

题型:填空题

下列说法正确的是( )。

A.笔划指在书写汉字时,不断地一次连续写成的一个线条

B.五笔字型是根据汉字的笔划、字根和单字三个层次的特点,按照汉字的书写顺序,以字根为基本单位来组字编码

C.五笔字型输入法中共有150个基本字根

D.汉字的结构分为单、散、连、交

题型:填空题

"The impulse to excess among young Britons remains as powerful as ever, but the force that used to keep the impulse in check has all but disappeared," claimed a newspaper. Legislation that made it easier to get hold of a drink was "an Act for the increase of drunkenness and immorality", asserted a politician.

The first statement comes from 2005, the second from 1830. On both occasions, the object of scorn was a parliamentary bill that promised to sweep away " antiquated" licensing laws. As liberal regulations came into force this week, Britons on both sides of the debate unwittingly followed a 19th-century script.

Reformers then, as now, took a benign view of human nature. Make booze cheaper and more readily available, said the liberalisers, and drinkers would develop sensible, continental European-style ways. Nonsense, retorted the critics. Habits are hard to change; if Britons can drink easily, they will drink more.

Worryingly for modern advocates of liberalisation, earlier doomsayers turned out to be right. Between 1820 and 1840, consumption of malt (which is used to make beer) increased by more than 50%. Worse, Britons developed a keener taste for what Thomas Carlyle called "liquid madness"—gin and other spirits.

The backlash was fierce. Critics pointed to widespread debauchery in the more disreputable sections of the working class. They were particularly worried about the people who, in a later age, came to be known as "ladettes". An acute fear, says Virginia Berridge, who studies temperance at the London School of Hygiene and Tropical Medicine, was that women would pass on their sinful ways to their children.

In the 19th century, temperance organisations set up their own newspapers to educate the public about the consequences of excess. That, at least, has changed: these days, the mainstream media rail against the demon drink all by themselves.

Which of the following could be the best title for the text()

A. Old Wine, New Bottle

B. Mainstream Media, Nonsense

C. Doomsayers, Unwarranted Arguments

D. Fierce Backlash, Immorality

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