出单双出现规律的公式百度一下简介：As soon as the man left, Liu De sneered and said: This is not deliberately making things difficult. With so many documents, it will take ten days and a half to read them. When will it be sorted out?
As soon as the man left, Liu De sneered and said: This is not deliberately making things difficult. With so many documents, it will take ten days and a half to read them. When will it be sorted out?
