เฉลยแบบทดสอบ

เฉลยแบบทดสอบ

1. c                                2. a             

3. b                                4. d             

5. a                                 6. b            

7. a                                8. a             

9. a                                10. a

11. b                               12. a  

13. c                               14. c  

15. a                                16. b 

17. c                                18. c  

19. c                                20. c