人类最重要的交际工具是（ ）。 A.手语 B.文字 C.有声语言 D.旗语

标签： 语言学概论（广西师范大学）章节测试答案

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  在采用TCP连接的数据传输阶段，如果发送端的发送窗口值由1000变为2000,那么发送端在收到一个确认之前可以发送（ ）。 A.2000B B.1000个TCP报文段 C.2000个TCP报文段 D.1000B