A.5%和5.10% B.6%和5.10% C.5%和6.15% D.6%和6.15%
A.6.71% B.6.77% C.6.80% D.6.83%
A.股利率 B.貸款利率 C.社會折現(xiàn)率 D.社會平均資金利潤率