NO.PZ2017100901000009
问题如下：
A company will shut down production in the short run if total revenue is less than total:
选项：
A.fixed costs.
variable costs
opportunity costs.
解释：
B is correct.
A company will shut down production in the short run when total revenue is below total variable costs
考点：停止营业点
解析：如果厂商的总收入小于其总的可变成本，那么厂商应该停止营业。
难道TR不是等于TC（TVC+TFC)的吗？
