A.先付年金 B.后付年金 C.延期年金 D.永續(xù)年金
A.(P/F,i,n) B.(F/P,i,n) C.(P/A,i,n) D.(F/A,i,n)
A.復(fù)利終值系數(shù) B.復(fù)利現(xiàn)值系數(shù) C.年金終值系數(shù) D.年金現(xiàn)值系數(shù)