A.(443.8,568.7) B.(444.8,568.7) C.(443.8,569.7) D.(A44.8,569.7)
A.F>S+W-R B.F=S+W-R C.F<S+W-R D.F≥S+W-R
A.0.59 B.0.65 C.0.75 D.0.5