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单选题
Before flight operations over water at low altitudes, apply corrosion-preventive fluid to the door hinges of the landing gear.
A
Scrape corrosion-protective liquid of the door connections of the landing gear earlier than the flight procedures of low water level.
B
Apply anti-corrosion fluid to the door hinges of the landing gear prior to flight operation above water at low altitude.
C
Solidify corrosion inhibitor on the door hinges of the landing gear in advance of flying across the low water.
答案解析
正确答案：B
