It helps the student can search, collection of information, data on the network to prepare for the course. In addition, it also help us entertain these at stress. Besides these advantages, the computers also have harmful effects. Sit your computer will reduce the long term vision, diseases such as back pain, nervous breakdown. It makes us take more time to play and entertainment on the Web instead of having to work and study.
đang được dịch, vui lòng đợi..