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FLIGHTCONTROLSURFACES的电门在LOCK位时，以下哪个功能不能实现（）

A.HYDRAULIC SPOILERS AND PRIMARY SURFACES-PUTS THE PCU BLOCKING/BYPASS VALVES TO THE BLOCK POSITION
B.STABILIZER AND ELECTRIC SPOILERS-REMOVES POWER FROM THE EMCUS
C.LEADING EDGE AND TRAILING EDGE DEVICES DISABLED BY LOGIC IN THE FCM
D.REMOVE HYDRAULIC POWER FROM THE FLIGHT CONTROL PCUS

单项选择题

飞机断电停场超过几天，需要断开FCE电瓶的插头（）

A.1
B.2
C.3
D.4