【单选题】以下对GRE VPN和BGP/MPLS VPN描述正确的有()。
C.
GRE VPN能够分隔地址空间,BGP/MPLS VPN不能分隔地址空间
D.
GRE VPN不能分隔地址空间,BGP/MPLS VPN能分隔地址空间
【判断题】I looked out of the window. It was dark outside.
【判断题】因为资源是稀缺的,所以产量是既定的,永远无法增加
【简答题】用所给动词的适当形式填空。 1. I saw the boy ________ (play) football when I looked out of the window. 2. It’s important ________ (not give) goldfish too much food. 3. Children shouldn't spend too much time _______...
【单选题】When we are studying the behavior of buyers, we are studying
D.
government regulation.