WhichofthefollowingdescriptionisWRONGaboutWi-Fi?().
A.Any standard Wi-Fi device.will work anywhere in the world with global operative set of standards B.Now most laptops are built with wireless network adapters inside C.One can connect Wi-Fi devices in ad-hoc mode for client-to-client connections without a router D.Communications between two devices need the involvement of an access point with Wi-Fi正确答案D
