The following operational requirements for the flight operation phase are incorrect.
A.The crew should strictly implement the company's fuel monitoring policy and regularly check the fuel on board. B.Check and record the remaining fuel level at least every 45 minutes, compare it with the flight plan, and if there is a discrepancy, find the reason and develop measures. C.When the aircraft is waiting and delayed in the air for a long time, the crew should make a timely decision to ensure the fuel margin and fly to a suitable backup airport. D.The crew should choose the best cruising altitude according to the actual situation such as weather and restrictions, and contact the dispatcher in time to make a joint decision according to the fuel condition on board.正确答案B
