【单选题】听力原文:Why was Hancock Street closed yesterday? (A) A marathon was routed along the road. (B) It's famous for apparel. (C) Yes, it closes at 9 every day. (8)
【简答题】●We have already covered the topic of network addresses. The first(71) in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is calle...
【单选题】听力原文:Three. Why was the man late home? Woman: Hi! Have you had a busy day at the office? Man: Yes, sorry I'm late. I didn't get the bus because Pete offered me a lift. We didn't realise the motorway w...
【单选题】听力原文:Why was Mr. Jackson late for the conference? (A) The conference was postponed. (B) He had to take his son to the hospital. (C) At 1:30 at the latest. (14)