新中国建立后，我国从社会主义制度建立到社会主义建设经历了艰难的探索和曲折发展。
请回答：
Judging from the message they convey, these two chapters are __________ independent of each other, that is, they are not in connection with the other at all.
下列函数中，y是x的反比例函数的是（ ）
