一级理论和二级理论的区别

Seeing the encouragement from the two, Tong Lei said softly: I think since Uncle Xiao runs a pharmaceutical company, he must be cooperating with pharmaceutical companies. You can ask Uncle Xiao to help find out if there are any pharmaceutical factories that are in operating difficulties or want to change hands. We can take them over and develop and produce them ourselves, or we can directly cooperate with Uncle Xiao....