多项选择题
A.IdleB.ActiveC.EstablishedD.InactiveE.Passive
A.5B.15C.30D.60
A.30B.60C.90D.180
A.1字节和2字节B.2字节和4字节C.3字节和6字节D.4字节和8字节
微信扫一扫,加关注免费搜题