The airplane altitude above sea level is determined by measuring the pressure of the _______(外界大气压力).
A.airplane cruise altitude; B.ambient atmosphere; C.cabin altitude; D.flight time;正确答案B
The airplane altitude above sea level is determined by measuring the pressure of the _______(外界大气压力).
A.airplane cruise altitude; B.ambient atmosphere; C.cabin altitude; D.flight time;正确答案B