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单选题
257.LG 机械部件包括哪些( ) LG mechanical components including:
A
LG上锁,门上锁 LG up lock, door up lock
B
LG下锁,门上锁,门下锁 LG down lock, door up lock, door down lock
C
LG上锁,门上锁,门下锁 LG lock, door up lock, door down lock
答案解析
正确答案：C
解析：
题目解析
题目询问LG机械部件包括哪些内容。正确答案是C. LG上锁、门上锁、门下锁。这是因为LG代表起落架（Landing Gear），在起落过程中需要控制上锁和解锁机制来确保起落架的稳定和安全。
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