单项选择题

A.mfcu≥fcu,k,fcu,min≥0.85fcu,k
B.mfcu≥1.05fcu,k,fcu,min≥0.85fcu,k
C.mfcu≥fcu,k,fcu,min≥0.95fcu,k
D.mfcu≥1.15fcu,k,fcu,min≥0.95fcu,k