Barack Obama's victory is a historic victory and that promised change and _____ overcame

centuries of prejudice.                                                                                                                                     [ ]

A. one

B. it

C. the one

D. that

下列关于内部收益率的表述，不正确的是（）。

A．内部收益率是使净现值为零的收益率

B．内部收益率是该项目能够达到的最大收益率

C．内部收益率说明该方案的实际获利水平

D．内部收益率小于基准收益率时，应该拒绝该项目