I was late for school this morning because the traffic was _________ by an accident.

A．used up

B．given up

C．held up

D．put up

用市场法对在制品进行评估时，应考虑的因素主要有( )。

A．市场价格

B．实体损耗

C．管理费用

D．变现费用

E．功能性损耗