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单选题
交输引气活门的功能是：The function of the cross bleed valve is to
A
调节防冰管道压力 Regulate anti-ice duct pressure
B
万一出现引气泄露时隔离防冰系统区域 Isolate areas of the anti-ice system in the event of a bleed air leak
C
允许一台发动机向两侧机翼提供防冰Allow a single engine to anti-ice both wings
D
增加空气供反推操作 augment air for thrust reversers operation
答案解析
正确答案：C
