RWYs 18L/36R are covered with dry snow, the depth is 3.5 mm, so the _______is very poor.
A.visibility
B.braking action
C.RVR
D.all of above
正确答案是B
RWYs 18L/36R are covered with dry snow, the depth is 3.5 mm, so the _______is very poor.
A.visibility
B.braking action
C.RVR
D.all of above
正确答案是B