19.勤务内话功能用于( ) What's the function of servic interphone?

　客舱服务员与地面人员以及地面人员之间的通讯 Between the cabin crew and ground staff and ground staff communication

　驾驶员与服务员之间的通讯 Between the pilot and the attendant communication

　驾驶舱与飞机上勤务内话插孔之间以及客舱站位与勤务内话插孔之间的通讯 Enables voice communications between the SERVICE INTERPHONE JACKS, the cockpit and the cabin stations.

正确答案：C

解析：

题目解析答案:C 解析：勤务内话功能用于使驾驶舱与飞机上的勤务内话插孔之间以及客舱站位与勤务内话插孔之间进行通讯。选项C描述了这个功能的确切作用，其他选项A和B描述的通讯方式不完全正确。

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A330机型熟悉课程试题

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