Whenmakinganapproachtoanarrower-than-usualrunway,withoutVASIassistant,thepilotshouldbeawarethattheapproach（）
A. altitudemaybehigherthanitappears
B. altitudemaybelowerthanitappears
C. mayresultinlevelingofftoohighandlandinghard
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Whenmakinganapproachtoawider-than-usualrunway,withoutVASIassistant,thereisatendency（）
A. toflyalower-than-normalapproach
B. toflyahigher-than-normalapproach
C. toflyanormalapproach
Inflight,anaircraftmakesaturnfromlevelflightatslowspeed,thepilotwillfeelthattheaircraft（）
A. isdescending
B. levelsoff
C. isascending
WhentheWhiteHoleEffectoccurs,pilotsshould（）
A. transfertotheinstrumentflightimmediately.
B. baseonvisualflightrulesanddescendtolookforasuitablegroundreference
C. baseonvisualflightrulesandclimbtoexpandthevisualrange
飞行员注视黑暗背景中的某一静止光点，有时会感觉该光点自动运动起来，可把这种现象定义为
A. 虚无错觉
B. 自主运动错觉
C. 眼重力错觉
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