题目内容
A Bluetooth device can be either a master or a slave and any of the devices within a (71) can be the master.There is only one master and there can be up to (72) active slave devices at a time within a single network.In addition, a device may be a standby slave or a parked slave.There can be up to (73) parked slaves.If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to (74) mode before it can become active.Within a network, all (75) communications are prohibited. 空白处(72)应选择()
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