题目内容

It was not until ________ when the 10th Olympic Games were held in ________ that China was invited for the first time to send athletes to compete.

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Xu Haifeng, a sharpshooter, was the first gold medal winner in Chinese Olympic history.

A. 对
B. 错

In 2001, Beijing made the Olympic bid for the 2012 Olympic Games and won the right to host the 29th Olympic Games.

A. 对
B. 错

IP地址块210.161.111.1/22和201.21.151.1/21的子网掩码分别可写为

A. 255.255.252.0和255.255.248.0
B. 255.255.248.0和255.255.240.0
C. 255.255.254.0和255.255.252.0
D. 255.255.255.0和255.255.254.0

下面选项哪个不是TCP拥塞控制的算法

A. 慢开始
B. 拥塞控制
C. 快恢复
D. 快重传

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