【单选题】 A The fuselage includes skin,stringers,frames,floor beams,floor,tail cone,and fuselage to wing and tail fittings. etc. B The fuselage includes skin,frames、stringers,floor beams,floor,tail cone,and fuselage to wing and empennage fillets,etc C The fuselage includes skin,beams,stringers,floor frames,floor tail skid,and fuselage to wing and rear fairings. etc.
