16. What is the passage mainly about?
(A) The aviation industry in the 1920s.
(B) The flying race in Maryland.
(C) Two famous women in aviation history.
(D) A pioneering woman pilot.
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統計: A(2), B(1), C(5), D(12), E(0) #1584393
統計: A(2), B(1), C(5), D(12), E(0) #1584393