vistasurvivor

引用:

原帖由 thomasshing1991 於 2007-10-27 23:38 發表

opportunity cost is the highest valued option forgone.the opportunity cost of playing 3.7d is the 4.X option forgone.

u cant say the opportunity cost of playing 3.7d is the choice of playing 4.X, unless u hv such an assumption: u only hv sufficient time to play either version once

since if u hv sufficient time to play as long as u want, u can play both version in different time