A.15.00% B.15.67% C.16.00% D.16.67%
A.收益率=(收入—支出)/收入×100 B.收益率=(收入—支出)/支出×100 C.收益率=(收入—支出)/支出×100% D.收益率=(收入—支出)/收入×100%
A.馬柯威茨 B.詹森 C.特雷諾 D.夏普