A.0B.1C.2D.3
A.ΔU%U2/100SeB.ΔU%100/U2SeC.100Se/ΔU%U2D.100U2/ΔU%Se
A.(KeU1-UB)/U1B.(KeU2-UA)/U1C.(U1-UB)/KeU1D.(U2-UA)/KeU2