NO.PZ2023010401000026
问题如下：
A profit maximum is least likely to occur when:选项：
A.average total cost is minimized. B.marginal revenue equals marginal cost. C.the difference between total revenue and total cost is maximized.解释：
The quantity at which average total cost is minimized does not necessarily correspond to a profit maximum.
中文解析：
使平均总成本最小的数量不一定对应利润最大值。
举个例子
