Jeremy Lin,______NBA star,used to be ______unknown player in New York.A.a a B.an an C.an a D.a an

Jeremy Lin,______NBA star,used to be ______unknown player in New York.A.a a B.an an C.an a D.a an
Jeremy Lin,______NBA star,used to be ______unknown player in New York.A.a a B.an an C.an a D.a an

Jeremy Lin,______NBA star,used to be ______unknown player in New York.A.a a B.an an C.an a D.a an
确实是B,N（/en/）的起音是元音,应选B