题目内容

哪些是TCP的部分特性

A. 可靠
B. 无连接
C. 没有流控
D. 重传没有收到的任何内容

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在数据传输过程中,接收主机负责什么?

A. 封装
B. 带宽
C. 分段
D. 重组
E. 确认

We _____ for three hours when we were allowed to enter.

A. waited
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He wasn't exactly a stranger -- I _____ him once before.

A. had met
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A. is working
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