It is true that Internet is really good.We should say that no liberay is better than that.We can get much information and learn a lot from internet.But we must be aware that some things we get from internet are not true.We must know that internet involves all the fields of prefessons,trades,unions and culture of historical ages and the modern times.It is inevitable that some false,or untrue information would appear in the net,especially there are some tricksters will use the internet to play their tricks.So the noted persons in the internet willl be tested.Some are true and some are false.The tricksters will make money,or honours,by playing tricks in net work.Therefore,we must be careful not to belive all of the so-called famous persons,or big heads,and not to belive all the slogans decked by the trickesters in the internet.