题目内容

When Zheng was lost one night, an American driver stopped his car and took Zheng to his house to spend the night.

A. 对
B. 错

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Zheng's knees were still painful from his injuries, so he thought his journey was not worthwhile.

A. 对
B. 错

局域网的英文缩写()

A. wan
B. pan
C. lan

在局域网中，为网络提供资源，并对网络进行管理的计算机是网络（）。

A. 工作站
B. 服务器
C. 管理机
D. 路由器

身体至少保持多久良好姿势才会慢慢固化？

A. 60天
B. 100天
C. 10天
D. 21天