ATTACH REQUEST和ATTACH ACCEPT分别包含于哪条空口RRC消息内( )
（A）RRC CONNECTION REQUEST, RRC CONNECTION SETUP
（B）RRC CONNECTION SETUP, RRC CONNECTION SETUP COMPELTE
（C）RRC CONNECTION SETUP COMPELTE,RRC CONNECTION RECONFIGURATION
（D）RRC CONNECTION RECONFIGURATION, RRC CONNECTION SETUP RECONFIGURATION COMPELTE
参考答案
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