For example, if the B787 is performing a visual approach based on Instrument Flight Rules (IFR) radar guidance at Hongqiao Airport, the following requirements should be met: The meteorological conditions should be such that the cloud base height is not less than ( ) meters or the minimum standard specified by the airport (whichever is higher) and the VIS is not less than ( ) meters.
A.600, 5000 B.450, 3000 C.450, 5000 D.500, 5000正确答案C
