圖像來源，Getty Images
When the star eventually releases its outer layers, it shrivels down to its core in what's known as a white dwarf star. At that point, it'll be about the size of Earth.，这一点在Line官方版本下载中也有详细论述
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用，更多细节参见Line官方版本下载
Generate up to 100 images per month with AI
The first thing a multi-tasking operating system needs from hardware is isolation: multiple programs must share one processor without being able to read, write, or jump into each other's memory. The 80386 achieves this through memory protection -- two independent address translation layers.