The flight altitude for aircraft with no oxygen equipment or whose oxygen equipment is unserviceable should not exceed _______ meters.
A3600
B4000
C4500
D5000
相关试题
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The flight altitude for aircraft with no oxygen equipment or whose oxygen equipment is unserviceable
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test should require no special equipment or facilities other than the installed on the aircraft and
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sts should require no special equipment or facilities other than that installed on the aircraft and