ATT DISCREPANCY(姿态差异)当主飞行显示器上显示检查姿态时,表示机长和副驾驶 PFD 上显示的横滚或俯仰角差异至少大于__ ?( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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