2017 2018 120 120 1 4 25 1. 6 1 2 3 4 5 2. 3 A. B. C. D. (shu ) 3. 4 1 (2) 4. 12 (1) ( ) 3 A B C D (2) 4 (3) 20 5 5 16 45 5 6 (8 ) ? 5. 5 6. ( ) 3 A B C D 7 9 12 ( ) 7. 3 (1) (2) (3) (4) 8. 6 (1) (2) 9. 3 10 13 25 1946 10. 6 11. (6 ) 12. (6 ) 13 (7 ) 50 14. (1) (2) 500 (3) (4)