Earthquake is one of the most severe natural disasters. It’s shaking of the ground caused by the sudden breaking and shifting of large secti...

考古是人类的一项很重要的活动，可以通过考古来对古人的生活状态进行更直观的了解，但是现如今我国的考古并不会是刻意去发掘古墓，而是在不小心挖到古墓之后...