什么是结晶度？
参考答案：纺织纤维内部结晶部分占整根纤维的百分比。
Which of the following statements regarding deadweight loss is least accurate（）
A. Deadweight loss occurs when the allocation of resources is inefficient.
B. Deadweight loss from underproduction leads to a loss of producer surplus but not consumer surplus.
C. Deadweight loss occurs when the quantity supplied does not maximize the sum of consumer and producer surplus.
九山八海
