下面哪种P2P网络拓扑属于混合式结构( )A.Choeh B.Skype C.Pa 发布时间:2017-05-21 16:05 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下面哪种P2P网络拓扑属于混合式结构( )A.ChoehB.SkypeC.PastryD.Tapestry
题型:单项选择题 The kind lady devoted all her life to _____ those homeless children.A.help B.helpingC.be helpingD.being helped 查看答案