9 1 (1) (2) 2 A B C D 3 A B C D 4 A ( ) ( ) ( ) B ( ) ( ) ( ) C ( ) ( ) ( ) D ( ) ( ) ( ) 5 ( ) A. B C D 6 A B C D 7 A B C D 8 A B C D 9 A B C D 10 C D 11 A B C D 12 1 2 3 4 13 (1) (2) (3) (4) (5) (6) (7) (8) 14 1 2 3 4 5 9 1 2 32 2 B(A C D ) 3 C A B D 4 C(A B D ) 5 D(A B C D ) A 6 A BCD 7 B A C D 8 C A B D 9 D 9 1 2 3 4 10 A 11 D A / B / C / 12 13 1 2 3 4 5 6 7 8 14 1 2 3 4 5