【简答题】Language has many functions. We can use language to talk about itself. This function is ________.
【单选题】[WJ-500-200] 在 TCP 中,连接的建立采用 ( )握 手的方法。
【简答题】作业 5 调试上面 3 个截图上的每一个命令并截图 .
【简答题】Language has many functions. We can use language to talk about itself. This function is ______ function.
【判断题】构建人类命运共同体是是当代中国对世界和平与发展的理论贡献。()