32 N , 1 2 1 ( A ) A B C D 2 ( B ) A B C D 3 ( A ) A B C D 4 ( B ) A B C D , 5 6 5 “ ” ( C ) A B C D 6 “ ” ( D ) A B C D “ ” , 7 8 7 ( B ) A B C D 8 A ( C ) A B C D 9 ( D ) , , A B C D 10 ( C ) A B C D 11 ( A ) A 0 B 400mm C D 12 ( A ) A B C D 13 “ ” (1) b c d f (2) b c 1 0 (3) 7 f( ) ( ) 14 “ ” (1) ( ) ( ) (2) ( ) ( ) ( ) (3) ( , ) (4) 15 (1) 1 0 (2) (3) ( C ) A B C D (4) (5) 16 (1) (2) (3) (4) _C_ A B C D (5)