Which of the following statements about internet is (are) correct?Ⅰ.Each host in internet only has a IP address.Ⅱ.It is possible to have multiple names corresponding to the same IP address.Ⅲ.In users' points, Internet means a virtual network.
- ANone
- BⅠ and Ⅱ
- CⅡ and Ⅲ
- DAll