下列服务器的叙述,不正确的是A.网络服务器是微机局域网的核心部件 B.网络服务器最主

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问题:

下列服务器的叙述,不正确的是

A.网络服务器是微机局域网的核心部件

B.网络服务器最主要的任务是对网络活动进行监督及控制

C.网络服务器在运行网络操作系统中,最大限度响应用户的要求并及时响应并处理

D.网络服务器的效率直接影响整个网络的效率

考点:计算机等级考试网络技术三级网络技术笔试28
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(二)阅读以下文字,完成下面问题。
沙漠化是指非沙漠地区出现以风沙活动、沙丘起伏为主要标志的沙漠景观的环境过程。沙漠化主要发生在干旱、半干旱及半湿润地区。现在全球有1/3的陆地被沙漠所占据,70%的干旱土地(36亿公顷)遭受沙漠化危害,全世界1/6人口受到沙漠化的影响。自20世纪70年代以来,全球沙漠化扩展趋势日益加剧。每年有600万公顷土地变为沙漠,有2000万公顷土地受沙漠化危害而完全丧失生产能力。我国约一半国土分布在干旱、半干旱地带,沙漠化不断扩展。20世纪90年代以来沙漠化扩大速度达2460平方公里/年,这相当于每年有一个中等县变成沙漠地区,直接损失达90亿元/年以上,间接损失更高达几百亿元/年。中国最严重的沙漠化发生在东起吉林省白城,西至宁夏回族自治区盐池的5500千米长的农牧交叉地带。沙漠化的起因主要是人类,如过度草原农垦、过度草原放牧、过度采伐和水资源利用不当等,。干旱、半干旱地区以及临近的半湿润地区生态系统的自然脆弱性,是沙漠化发生的自然因素。

文中画曲线的四个词语使用不当的一个是( )

A.占据

B.危害

C.加剧

D.交叉

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设备机架应垂直,垂直偏差应≤()。

A、1mm

B、5mm

C、10mm

D、20mm

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技术分析是从证券的市场行为来分析证券价格未来变化趋势的方法。证券市场行为最基本的表现形式不包括______。

A.证券市场价格的变化
B.证券成交量的变化
C.证券的相关因素变化所经历的时间
D.公司经营业绩

题型:单项选择题

应急照明灯和疏散指示标志连续供电时间不应少于( )高度超过100m的高层建筑连续供电时间不应少于( )。

A.20min,30min
B.10min,30min
C.20min,15mm
D.30min,50min

题型:单项选择题

Analysts have their go at humor, and I have read some of this interpretative literature, (1) without being greatly instructed. Humor can be (2) , (3) a frog can, but the thing dies in the process and the innards are (4) to any but the pure scientific mind.

One of the things (5) said about humorists is that they are really very sad ’people clowns with a breaking heart. There is some truth in it, but it is badly (6) . It would be more (7) , I think, to say that there is a deep vein of melancholy running through everyone’s life and that the humorist, perhaps more (8) of it than some others, compensates for it actively and (9) Humorists fatten on troubles. They have always made trouble (10) They struggle along with a good will and endure pain (11) , knowing how well it will (12) them in the sweet by and by. You find them wrestling with foreign languages, fighting folding ironing hoards and’ swollen drainpipes, suffering the terrible (13) of tight boots. They pour out their sorrows profitably, in a (14) of what is not quite fiction nor quite fact either. Beneath the sparking surface of these dilemmas flows the p (15) of human woe.

Practically everyone is a manic depressive of sorts, with his up moments and his down moments, and you certainly don’t have to be a humorist to (16) the sadness of situation and mood. But there is often a rather fine line between laughing and crying, and if a humorous piece of writing brings a person to the point (17) his emotional responses are untrustworthy and seem likely to break over into the opposite realm, it is (18) humor, like poetry, has an extra content, it plays (19) to the big hot fire which is Truth, and sometimes the reader feels the (20) .

7()

A.accurate

B.normal

C.immediate

D.exclusive

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