A: With the development of the science and technology, the computer has been becoming the necessity for people in the 21st Century. Following, network is of close link with our life, bringing us incomparable convenience on our life and work. Through the network, we can search for useful material and get to know the current events，and it broadens our horizon and makes us more informative.B: But, at present, there are too many games on the Internet, and some of them are not of good quality even
