9. 下列有關RA患者的關節外表現(extra-articular manifestations)的組合中，何者最為正確？ (1) keratoconjunctivitis sicca (2) pleural effusion (3) thromboembolism (4) oral ulceration (5) panniculitis (6) ascites (7) erythema nodosum (8) uveitis (9) interstitial lung disease (10) IgA nephropathy (A) 1+3+5 (B) 1+2+9 (C) 3+4+5 (D) 2+7+8 (E) 5+9+10