题目

A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces (熔炉) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die. The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns. After the explosion gravity pulls in what’s left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A s读中国行政区划图，完成下列各题．（1）A省的行政中心是 ，与它相邻的省区中有两个的简称的是 、 ．（2）B省的简称是 ，D的简称是 ．（3）C是我国最大的岛屿 ，与C所在省区隔海相望的省是 ．