What did Dr. Edwin Land invent A.A quick p
问题:
What did Dr. Edwin Land invent
A.A quick process of developing film.
B.A new kind of film.
C.An automatic printer.
D.A kind of camera that develops its own film.
What did Dr. Edwin Land invent
A.A quick process of developing film.
B.A new kind of film.
C.An automatic printer.
D.A kind of camera that develops its own film.