21st century is the century of technology. Nowadays, technology is everywhere around us. The development of technology has a significant affact toward the society. Several technologies that we usually use are the internet, computer, and cellphone. These...

知识就是力量，特别是科学和技术知识。科学技术是社会发展的原动力。没有他们，人类社会的发展永远无法从原始社会到现代社会。因此，要征服和改造自然，我们必须掌握的科学知识。然而，社会知识也很重要。没有它，我们无法理解的社会，不知道是社会发展的规律。因此，我们不能...

关于iphone关于智能手机关于苹果手机 Every people considers Apple as their first choice when they buy a smart phone. If they have not enough money, then they will choose another brand. Nokia was the leader of cellphone market, which seemed to be kicked out...