下列哪些是飞行中处境意识薄弱或失去的迹象？ Which of the following is the clue of situation awareness weaken or loss during the flight?
A.无法明确飞机的位置 Unable to position of the aircraft
B.坚持标准操作程序 Adhere to standard operating procedures
C.尽可能达到飞行计划或剖面的预期检查点－预达时间、燃油消耗等 Meet expected checkpoint on flight plan or profile-ETA, fuel burn, etc. as far as possible
正确答案是A