问题
单项选择题
冲压空气按钮设置在“ON”位时，应急冲压活门将在下列哪种情况下打开：（）.
A.任何情况
B.假定未选择水上迫降
C.P<1PSI且未选择水上迫降
答案
参考答案：B
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冲压空气按钮设置在“ON”位时，应急冲压活门将在下列哪种情况下打开：（）.
A.任何情况
B.假定未选择水上迫降
C.P<1PSI且未选择水上迫降
参考答案：B
| 完形填空。 | |||
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