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单选题
227.ECAM上WHEEL页面什么时候自动显示及消失( )when do the WHEEL page which on ECAM automatic display and disappear?
A
在地面,当发动机启动时自动显示,当发动机设置成起飞推力时消失;On the ground, display automatically when the engine starts, disappeared when the engine is set to take-off position
B
在空中当起落架选择手柄选择在DOWN位或无线电高度低于800英尺,关车后自动消失;In flight when the landing gear selector lever selection in the DOWN or radio height less than 800 feet, automatically disappear after shutdown;
C
A+B
答案解析
正确答案：C
解析：
ECAM上WHEEL页面什么时候自动显示及消失( )when do the WHEEL page which on ECAM automatic display and disappear?
答案: C
题目解析: 答案C是正确的。ECAM的WHEEL页面会在特定条件下自动显示和消失。选项A提到了地面和发动机启动时显示，选项B提到了在空中且起落架选择手柄在DOWN位或无线电高度低于800英尺时显示，但只有选择了A和B两个条件，即地面发动机启动时自动显示，起落架选择手柄在DOWN位或无线电高度低于800英尺时自动消失，才是正确的。
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