关于科技的演讲稿3篇 the presence of students, ladies and teachers, everyone! i was prepared intervals of cloud today, in honor here entitled technology and future speech, i am very proud of both, but some unease. in recent years, we have seen our great motherland, the cause of the rapid development of technology, which allow me to a chinese i feel very proud. remember that long ago, cell phone use almost the only one, which is called, but a few years ago, cell phones has undergone great changes, n