单项选择题
A.a famous Italian physician B.a famous Italian inventor C.a famous Italian electrician D.a famous Italian novelist
A.communicate via radio through the Bristol Channel B.establish a long distance transmission C.transmit the first radio messages D.work with a German physicist
A.was given to Marconi and his compatriot Braun B.was given to Marconi and his partner Braun C.was shared by Marconi and Braun D.was shared by a German scientist and an American scientist