单项选择题
A.巡查体系 B.现场管理 C.巡查内容 D.实施管理
A.DTMF/MFC/CID+DTMF/MFC/CID B.TONE/DTMF/MFC/CID +DTMF/MFC/CID C.TONE/DTMF/MFC/CID +DTMF/MFC/CID/TONE D.TONE/DTMF/MFC/CID/CONF+TONE/DTMF/MFC/CID /CONF
微信扫一扫,加关注免费搜题