A good story does not necessarily have to have a happy ending, but the reader must not be left _____.[ ]

A. unsatisfying

B. unsatisfied

C. to be unsatisfying

D. being unsatisfied

在保险公估理赔计算中，( )是对于大量损余物资的处理应该坚持的原则。

A．损失最小讹

B．收益最大化

C．利润最大化

D．“物尽其用”和“货比三家”