刷題狂熱者
The profit maximizing level of output is not affected by fixed costs. Therefore, the firms will produce the same quantity.
A market in equilibrium leaves no opportunities for gain to individual buyers or sellers in the market. However, the resulting allocation of resources need not be socially optimal.
-不要想当然做题,虽然刷了很多test bank,但是有很多陷阱(类似于extra,not true,all/none of these options are correct)
-注意coordinate unit/calculate unit