第30题: [单项选择]A. He is anxious to find a cure for his high blood pressure. B. He doesn’t think high blood pressure is a problem for him. C. He was not aware of his illness until diagnosed with it. D. He did not take the symptoms of his illness seriously. 参考答案:C 答案解析:[听力原文] W: How did you feel when you found out you had high blood pressure M: Shocked! The pro
第37题: [单项选择]下列地址中,和192.110.53.233在同一网段的地址是______。 A. 192.110143.10 mask 255.255.240.0 B. 192.110.48.10 mask 255.255.252.0 C. 192.110.43.10 mask 255.255.248.0 D. 192.110.48.10 mask 255.255.248.0 参考答案:D 答案解析:计算方法是用子网掩码与两个地址分别进行按位“与”,结果相同则属于同一子网。192.110.53.233、192.110.48.10与255.255.248.0按位进行“与”的结果都是192.110.4