单项选择题
对于华为U2000测,掉话率公式定义哪一项是正确的?
A.CallDropRate=L.E-RAB.AbnormRel/L.E-RAB.NormRel*100%
B.CallDropRate=L.E-RAE.Abnormrel/(L.E-RAB.Normrel+L.E-RAB.Abnormrel)*100%
C.CallDropRate=L.E-RAB.Abnormrel/L.E-RAB.Succest*100%
D.CallDropRate=L.E-RABAbnormrel/RRCConnectionSetupSuccess*100%