多项选择题

A.A+A(P/A,i,n)
B.A(P/A,i,n+1)
C.A(P/A,i,n+1)(F/P,i,1)
D.A(F/A,i,n+1)(P/F,i,n)
E.A(F/A,i,n)(P/F,i,n)