BBC,shorted for British Broadcasting Corporation,is a British stand-alone media corporation supported by the government.it is one of the most respected media corporation in the world.For a long time,BBC had monopolized the television and radio industry of Britain.BBC is the only television and radio comapany in Britain before the establishment of ITN in 1955.Today,BBC is not only a media corporation that has a good reputation,but also offer other services including the publications of books,newspapers,and other fields like English learning,symphony orchestra and Internet services.