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In certain cases the SLI has to be accompanied by other documents，（）
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更多“In certain cases the SLI has t…”相关的问题
In information theory, "information" is regarded as knowledge which reduces or removes(71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For instance, an event may be the occurrence of a(72) character or word in a given message or in a given position of a message.In communication theory, channel is defined as that part of a communication system that connects the message source with the message sink. An encoder may be inserted between the message source and the input to the channel, and a(73) between the output of the channel and the message sink. Generally, these two units are not considered as being parts of the channel. In certain cases, however, they may be considered as pans of the message source and message sink,(74) In information theory(75) to Shannon, the channel can be characterized by the set of conditional probabilities of occurrence of all the messages received at the message sink when a given message emanates from the message source.
A．uncertainty
B．unreliability
C．randomness
D．inconsistency
Satellites have enabled immediate reporting worldwide.A reporter can send the news to a network like CBS News and within seconds it can be all over the world.They send electronic reports that go straight into the newspaper or onto the TV screen.Reporters can now also transmit images through their mobile phones.Consequently, live, “on-the-spot” reporting has become the norm and TV viewers can get a much better idea of what a natural disaster, a conflict or an interesting scientific discovery is like.
In recent years, several changes have occurred in the ownership of news media.Networks owned by large companies and governments have become bigger and very powerful.These networks – such as BBC News 24–are hungry for news and have huge audiences.However, there can only be a limited number of such networks and their ownership is a big issue.
Some companies not only own TV and radio networks but newspaper groups as well.Who decides what news to publish and what sort of “spin” to put on it？ Is it always objective？ There are now “spin doctors” who manipulate the news,emphasising certain parts and not others – and as a result, much of it is not neutral.Therefore, the question of control of the media matters very much.In some cases, the media companies are more powerful than governments.They can even influence elections.So the question is – should they be controlled and if so, by whom？
1.Immediate reporting has become possible all over the world because of().
A.reporters
B.the use of news networks
C.the use of satellites
D.the communications revolution
2.()has become the norm.
A.Electronic reports
B.Instant news
C.Live reporting
D.Transmitting images through mobile phones
3.In what ways are media companies powerful？ ()
A.They can influence elections in some way
B.Nowadays, the manipulation of news reports is possible
C.They not only own TV and radio networks but newspaper groups as well
D.All of the above
4.According to the passage, the big issue is ().
A.ownership of news networks
B.that there can only be a limited number of such networks like BBC News 24
C.that networks owned by large companies and governments have become bigger and very powerful
D.that the news reporting is manipulated by big companies
5.What can be inferred from this passage？ ().
A.The disadvantages of the communications revolution outweigh its advantages
B.We should put the question of control of the media on the agenda
C.The news reporting has always been objective
D.A reporter can send news directly to the audiences all over the world
In the______majority of cases, this is a very successful operation.
A．tremendous
B．wide
C．broad
D．vast
The goods were packed ()plywood cases, with gunnies covering the outside.
A．about
B．on
C．in
D．up
A.conclude
B.conclusion
C.concluding
D.concluded
A.where
B.when
C.so that
D.however
