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单选题
P5-4板上“APU GEN”有两个瞬态电门，其功用是：
A
任意作动其中一个就能接通APU 发电机与115V AC GEN BUS 1和2 的连接，向整个飞机电网供电
B
任意作动其中一个就能接通APU 发电机与115V AC GEN BUS 1和2 的连接，向整个飞机电网提供或切断电源
C
作动左侧电门，APU发电机向115V AC GEN BUS 1提供或切断电源；作动右侧电门，APU发电机向115V AC GEN BUS 2提供或切断电源
D
作动左侧电门，APU发电机向115V AC MAIN BUS 1提供或切断电源；作动右侧电门，APU发电机向115V AC MAIN BUS 2提供或切断电源
答案解析
正确答案：C
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