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单选题
1774. The fire alarms provide visual and aural indication to the flight crew about a fire in any of these systems
A
The flight crew can get visual and aural indication about a fire in any of these fire alarm systems.
B
The fire alarms provide indications about afire in any of these systems to the flight crew in visual and aural ways.
C
Visual and aural indications are the fire alarms that the flight crew will get from any of these systems.
答案解析
正确答案：B
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