寻找UFO

人类前进的历史是伴随着无数个问号,并沿着这些问号被解答的路而向前延伸的。今天,世界已经以日新月异的速度发展了一个新的高峰。掌握了高科技手段的人类,正不断走向未知领域,对我们的历史、未来提出一个又一个置疑,本书为大家集中收集了人类历史上的劫难和神秘的失踪之谜。(The history of the advance of human beings is accompanied by numerous questions and extends forward along the path of solving these questions. Today, the world has rapidly developed to a new peak. The human beings who have mastered the high-tech means are continuously going into the unknown field and asking questions about our history and future one after another. This book centralizes and collects the disasters and the mysterious mysteries of disappearance in human history.)