A.0.8 B.1 C.1.29 D.1.78
A.5% B.15% C.20% D.25%
A.投资利税率 B.投资报酬率 C.内含报酬率 D.会计收益率
A.12.50% B.20% C.31.25% D.40%
A.5.33% B.16% C.33.33% D.38.67%