33 Every year fire safety plans such as control system plans, fire alarm system plans, fire suppression system plans, automatic ________ system plans, and place of assembly plans are reviewed by the fire protection engineering unit.
(A) photovoltaic
(B) robotic
(C) immune
(D) sprinkler

消防工程單位，每年對控制系統方案、火災報警系統方案、滅火系統方案、自動_灑水_系統方案、裝配場所方案等，消防安全方案進行審查。