此系统用于伸出或收回起落架。A、 This system is used to expand and return the landing gearB、 This system is used to extend and retract the landing gear.C、 This system is used to extract and retract the landing gear.-易过题库-题库最全的搜题网站

此系统用于伸出或收回起落架。

A This system is used to expand and return the landing gear

B This system is used to extend and retract the landing gear.

C This system is used to extract and retract the landing gear.

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