通常情况下，II/III类进近决断高采用哪一高度作为参照？Typically, which height is used to

通常情况下，II/III类进近决断高采用哪一高度作为参照？Typically, which height is used to determine DH?

A.无线电高 Radio Height

B.气压高度 Pressure Altitude

C.气压高 Pressure Height

正确答案是1