ABluetoothdevicecanbeeitheramasteroraslaveandanyofthedeviceswithina()canbethemaster.Thereisonlyonemasterandtherecanbeupto()activeslavedevicesatatimewithinasinglenetwork.Inaddition,adevicemaybeastandbyslaveoraparkedslave.Therecanbeupto(请作答此空)parkedslaves.Iftherearealreadymaximumnumberofactiveslaves,thenaparkedslavemustwaituntiloneoftheactiveslavesswitchesto()modebeforeitcanbecomeactive.Withinanetwork,all()communicationsareprohibited.
A.127 B.255 C.511 D.1023正确答案B
