A. Norway

B. Denmark

Correct answer: b

As a technical standard of wireless communication, Bluetooth can transmit data in a short distance, and everyone is familiar with it. So how did it get its name?

The word "Bluetooth" is Scandinavian Bl? tand/Bl？ The anglicization of tann, the word is 10 century Danish and Norwegian king Bluetooth Harald Bluetooth (Danish: Harald Bl? And Gormson).

He unified the disputed Danish tribes into a kingdom, and the idea of naming them after Bluetooth was first put forward by Jim Kardach in 1997. He is reading a historical novel, The Long Ship, written by frans G. bengtsson, which describes the Vikings and King Harald Bluetooth. He borrowed the nickname of the king and hoped that Bluetooth would unify the communication protocol into a global standard.

The original Taiwan Province province translated as "Bluetooth" (bl? = blue, tand= tooth), by 2006, the Bluetooth Technology Alliance had changed the global Chinese translation to "Bluetooth" and registered it as a registered trademark of the organization.

And our common Bluetooth logo is the Runic letter ior.svg(Hagall,? ) and the Nordic archaic letter berkanan.svg (bjarkan,? ), which is harald Bl? Co-writing of the initials HB of tand.