If with one hour of labor time nation A can produce either 3X or 3Y while nation B can produce either 1X or 3Y (and labor is the only input 投入), the range of mutually 互相得beneficial trade between nation A and B is: ( )
A:3Y<3X〈5Y
B:5Y<3X<9Y
C:3Y<3X<9Y
D:1Y<3X〈3Y
发布时间:2024-06-15 11:19:31