最近几天,全国人民都在饱受“空难”、“黑匣子”、“保险金”等词汇的折磨。这是继大连空难以后的又一次震惊性事件。所有人都吓坏了,心理在琢磨:不坐飞机了,改乘其他交通工具吧。但没有一个人选择徒步旅行。对于早期的人类来说,徒步旅行是一种非常危险的事情,因为徒步行走的速度太慢, In recent days, people across the country are suffering from the words “crash”, “black box”, “insurance money” and other words. This is yet another shock incident following the crash in Dalian. Everyone was terrified, pondering the psychological: do not fly, change to other means of transport it. But no one chose to go hiking. For early humans, hiking is a very dangerous thing, because hiking is too slow,