网络协议的三个要素:语法、语义和( )。A.工作原理 B.时序 C.进程 D.传输

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问题:

网络协议的三个要素:语法、语义和( )。

A.工作原理

B.时序

C.进程

D.传输服务

考点:计算机等级考试网络技术三级网络技术笔试15
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中国分布最广的少数民族是壮族,人口最多的少数民族是回族。

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在“目疾果如先生言已愈矣,未审痈毒能不发否”中,“审”之义为()

A.审察

B.详细

C.知道

D.询问

题型:单项选择题
There were two interesting pieces of news items in the paper a few years ago. One was about a man who received a bill from the telephone company for $ 2,000 a month for doing nothing.
  The connection between the two news items is simple; computers-the best invention of the 20th century. The telephone bill came from a computer which made a terrifying mistake; that man’s bill was only $ 23.26. The other item was not as amusing. A man walked into the unguarded computer room of a large packaged food company and expertly programmed the computer to pay him $ 2,000 a month for raw meat which he “supplied ” to the company. Of course he never sent the meat, but he certainly received the money . The computer wrote out a bill, and even “signed ” it. It was only a random (随便) check that uncovered the trick. It could be happening in thousands of other companies all over the world.
  Computers are not the magical workers that some people say they are. They make mistakes, they’re sometimes slower than human beings and they’re easily fooled.
  The US used to conscript (征兵) people with the help of a computer. The army sent out a card, which had to be filled in and sent back. It was easy to avoid being called up simply by spreading candle-wax(腊) on the card. The computer couldn’t read the card, and did nothing with it.
  It’s in our everyday life that computers cause many problems. Let’s get back to using people instead of computers, before a mistake that we can’t put right.
小题1:In the first paragraph we can conclude ______.
A.the paper is telling a lieB.the first sentence is the topic sentence
C.the two news items made people surprised
D.if a man did nothing at all for the telephone company, he would still get $2,000 a month
小题2:The main idea of the second paragraph is _______.
A.the computers are magical workers
B.the computers can do anything as well as man
C.the computers can write out the bill and even sign it
D.the computers sometimes also make mistakes
小题3:Computers ______.
A.were used to conscript peopleB.are usually faster than human beings
C.are not so magical as people expect
D.were not easily controlled and always fooled human beings
小题4:The writer thinks _______.
A.we’d better use people instead of computers in our everyday life
B.we should not use computers because they always make mistakes
C.computers are widely used in our everyday life
D.if we want to work well, don’t use the computers
题型:单项选择题

正式实行“一口通商”的“闭关锁国”政策是在()

A.康熙年间

B.雍正年间

C.乾隆年间

D.嘉庆年间

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佛教在我国历史上()执政时期正式传入中国。

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