A.Srxlev>0 B.R_N>R_S(R_N=Qmeas,n-CellQoffset,R_S=Qmeas,s+Qhyst) C.Sxlev>0,且Squal>0 D.Sxlev>0,且Saual>0
A.SAR/SAA B.MAR/MAA C.UAR/UAA D.UDR/UDA
A.7 B.8 C.9 D.10