He is pleased to think that he _________ himself on the beach at this time next week.

A．will enjoy

B．is enjoying

C．will be enjoying

D．enjoys

在互斥方案的选优分析中，若差额内部收益率指标大于基准收益率或设定的折现率时，则原始投资额较小的方案为较优方案。( )