第20题: [单项选择]What is one of Kant’s contributions to geography A. Combining physical geography with philosophy. B. Organizing human knowledge of geography into different categories. C. Separating geography from its close ties with theology. D. Publishing many books on geography. 参考答案:C
第34题: [单项选择]为避免地址的浪费,在一条点到点的链路上子网掩码应该指定为 (4) A. 255.255.255.252 B. 255.255.255.248 C. 255.255.255.240 D. 25.255.255.196 参考答案:B 答案解析:[解析] 在一条点到点的链路上只需要两个地址,子网掩码指定为255.255.255.252,则可以得到四个地址,除去末尾两位全0和1外,就只剩两个地址可用了。