NO.PZ2023010401000021
问题如下：
With its existing production facilities, a monopolist firm can produce up to 100 units. It faces the following demand and cost schedules:
The optimal output level for this producer (in units) is closest to:
选项：
A.20 B.60. C.100解释：
Solution: B
total cost的单位直接是$吧？Per unit写到这里就不知道究竟是什么意思了。
