19. U
······················································································································································ 17
20. B
&R
21. D
·························································································································································· 18
22. P
···························································································································································· 18
23. G
················································································································································· 18
OOGLE
24. S
······························································································································································· 18
V. HOW TO RESOLVE MALFUNCTION···················································································································· 20
··············································································································································· 18
4